Home / 47,861.39-71,792.07-12,800.13

Finding the Fourth Proportional to 47,861.39, 71,792.07 and 12,800.13

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Solution

The fourth proportional to 47,861.39, 71,792.07 and 12,800.13 is: 19,200.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,861.39 : 71,792.07 = 12,800.13 : x
  2. Step 2: Convert to fraction form
    47,861.39/71,792.07 = 12,800.13/x
  3. Step 3: Cross multiply
    47,861.39x = 71,792.07 × 12,800.13
  4. Step 4: Simplify right side
    47,861.39x = 918,948,050.19
  5. Step 5: Solve for x
    x = 918,948,050.19/47,861.39
  6. Step 6: Final answer
    x = 19,200.20

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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.