Home / 39,720.60-54,812.70-23,801.40

Finding the Fourth Proportional to 39,720.60, 54,812.70 and 23,801.40

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Solution

The fourth proportional to 39,720.60, 54,812.70 and 23,801.40 is: 32,844.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,720.60 : 54,812.70 = 23,801.40 : x
  2. Step 2: Convert to fraction form
    39,720.60/54,812.70 = 23,801.40/x
  3. Step 3: Cross multiply
    39,720.60x = 54,812.70 × 23,801.40
  4. Step 4: Simplify right side
    39,720.60x = 1,304,618,997.78
  5. Step 5: Solve for x
    x = 1,304,618,997.78/39,720.60
  6. Step 6: Final answer
    x = 32,844.90

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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.