Home / 30,767.90-42,458.82-17,338.92

Finding the Fourth Proportional to 30,767.90, 42,458.82 and 17,338.92

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Solution

The fourth proportional to 30,767.90, 42,458.82 and 17,338.92 is: 23,927.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,767.90 : 42,458.82 = 17,338.92 : x
  2. Step 2: Convert to fraction form
    30,767.90/42,458.82 = 17,338.92/x
  3. Step 3: Cross multiply
    30,767.90x = 42,458.82 × 17,338.92
  4. Step 4: Simplify right side
    30,767.90x = 736,190,083.27
  5. Step 5: Solve for x
    x = 736,190,083.27/30,767.90
  6. Step 6: Final answer
    x = 23,927.21

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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.