Home / 39,387.05-59,044.12-13,087.16

Finding the Fourth Proportional to 39,387.05, 59,044.12 and 13,087.16

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Solution

The fourth proportional to 39,387.05, 59,044.12 and 13,087.16 is: 19,618.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,387.05 : 59,044.12 = 13,087.16 : x
  2. Step 2: Convert to fraction form
    39,387.05/59,044.12 = 13,087.16/x
  3. Step 3: Cross multiply
    39,387.05x = 59,044.12 × 13,087.16
  4. Step 4: Simplify right side
    39,387.05x = 772,719,845.50
  5. Step 5: Solve for x
    x = 772,719,845.50/39,387.05
  6. Step 6: Final answer
    x = 19,618.63

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1.5x scale

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.