Home / 38,865.71-58,300.38-12,572.50

Finding the Fourth Proportional to 38,865.71, 58,300.38 and 12,572.50

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Solution

The fourth proportional to 38,865.71, 58,300.38 and 12,572.50 is: 18,859.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,865.71 : 58,300.38 = 12,572.50 : x
  2. Step 2: Convert to fraction form
    38,865.71/58,300.38 = 12,572.50/x
  3. Step 3: Cross multiply
    38,865.71x = 58,300.38 × 12,572.50
  4. Step 4: Simplify right side
    38,865.71x = 732,981,381.80
  5. Step 5: Solve for x
    x = 732,981,381.80/38,865.71
  6. Step 6: Final answer
    x = 18,859.34

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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.