Home / 39,031.92-58,554-12,730.59

Finding the Fourth Proportional to 39,031.92, 58,554 and 12,730.59

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Solution

The fourth proportional to 39,031.92, 58,554 and 12,730.59 is: 19,097.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,031.92 : 58,554 = 12,730.59 : x
  2. Step 2: Convert to fraction form
    39,031.92/58,554 = 12,730.59/x
  3. Step 3: Cross multiply
    39,031.92x = 58,554 × 12,730.59
  4. Step 4: Simplify right side
    39,031.92x = 745,426,966.86
  5. Step 5: Solve for x
    x = 745,426,966.86/39,031.92
  6. Step 6: Final answer
    x = 19,097.88

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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.