Home / 42,022.20-57,993.78-23,159.40

Finding the Fourth Proportional to 42,022.20, 57,993.78 and 23,159.40

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Solution

The fourth proportional to 42,022.20, 57,993.78 and 23,159.40 is: 31,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,022.20 : 57,993.78 = 23,159.40 : x
  2. Step 2: Convert to fraction form
    42,022.20/57,993.78 = 23,159.40/x
  3. Step 3: Cross multiply
    42,022.20x = 57,993.78 × 23,159.40
  4. Step 4: Simplify right side
    42,022.20x = 1,343,101,148.53
  5. Step 5: Solve for x
    x = 1,343,101,148.53/42,022.20
  6. Step 6: Final answer
    x = 31,961.70

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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.