Home / 30,767.07-42,458.73-17,338.53

Finding the Fourth Proportional to 30,767.07, 42,458.73 and 17,338.53

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Solution

The fourth proportional to 30,767.07, 42,458.73 and 17,338.53 is: 23,927.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,767.07 : 42,458.73 = 17,338.53 : x
  2. Step 2: Convert to fraction form
    30,767.07/42,458.73 = 17,338.53/x
  3. Step 3: Cross multiply
    30,767.07x = 42,458.73 × 17,338.53
  4. Step 4: Simplify right side
    30,767.07x = 736,171,963.87
  5. Step 5: Solve for x
    x = 736,171,963.87/30,767.07
  6. Step 6: Final answer
    x = 23,927.27

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.