Home / 39,688.84-59,531.46-13,393

Finding the Fourth Proportional to 39,688.84, 59,531.46 and 13,393

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Solution

The fourth proportional to 39,688.84, 59,531.46 and 13,393 is: 20,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,688.84 : 59,531.46 = 13,393 : x
  2. Step 2: Convert to fraction form
    39,688.84/59,531.46 = 13,393/x
  3. Step 3: Cross multiply
    39,688.84x = 59,531.46 × 13,393
  4. Step 4: Simplify right side
    39,688.84x = 797,304,843.78
  5. Step 5: Solve for x
    x = 797,304,843.78/39,688.84
  6. Step 6: Final answer
    x = 20,088.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.