Home / 39,071.31-58,610.61-12,778.71

Finding the Fourth Proportional to 39,071.31, 58,610.61 and 12,778.71

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Solution

The fourth proportional to 39,071.31, 58,610.61 and 12,778.71 is: 19,169.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,071.31 : 58,610.61 = 12,778.71 : x
  2. Step 2: Convert to fraction form
    39,071.31/58,610.61 = 12,778.71/x
  3. Step 3: Cross multiply
    39,071.31x = 58,610.61 × 12,778.71
  4. Step 4: Simplify right side
    39,071.31x = 748,967,988.11
  5. Step 5: Solve for x
    x = 748,967,988.11/39,071.31
  6. Step 6: Final answer
    x = 19,169.26

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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.