Home / 31,572.48-47,333.10-12,861.28

Finding the Fourth Proportional to 31,572.48, 47,333.10 and 12,861.28

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Solution

The fourth proportional to 31,572.48, 47,333.10 and 12,861.28 is: 19,281.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,572.48 : 47,333.10 = 12,861.28 : x
  2. Step 2: Convert to fraction form
    31,572.48/47,333.10 = 12,861.28/x
  3. Step 3: Cross multiply
    31,572.48x = 47,333.10 × 12,861.28
  4. Step 4: Simplify right side
    31,572.48x = 608,764,015.70
  5. Step 5: Solve for x
    x = 608,764,015.70/31,572.48
  6. Step 6: Final answer
    x = 19,281.48

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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.