Home / 38,572.98-57,865.95-12,285.78

Finding the Fourth Proportional to 38,572.98, 57,865.95 and 12,285.78

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Solution

The fourth proportional to 38,572.98, 57,865.95 and 12,285.78 is: 18,430.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,572.98 : 57,865.95 = 12,285.78 : x
  2. Step 2: Convert to fraction form
    38,572.98/57,865.95 = 12,285.78/x
  3. Step 3: Cross multiply
    38,572.98x = 57,865.95 × 12,285.78
  4. Step 4: Simplify right side
    38,572.98x = 710,928,331.19
  5. Step 5: Solve for x
    x = 710,928,331.19/38,572.98
  6. Step 6: Final answer
    x = 18,430.73

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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.