Home / 47,651.43-71,479.71-12,590.13

Finding the Fourth Proportional to 47,651.43, 71,479.71 and 12,590.13

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Solution

The fourth proportional to 47,651.43, 71,479.71 and 12,590.13 is: 18,885.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,651.43 : 71,479.71 = 12,590.13 : x
  2. Step 2: Convert to fraction form
    47,651.43/71,479.71 = 12,590.13/x
  3. Step 3: Cross multiply
    47,651.43x = 71,479.71 × 12,590.13
  4. Step 4: Simplify right side
    47,651.43x = 899,938,841.26
  5. Step 5: Solve for x
    x = 899,938,841.26/47,651.43
  6. Step 6: Final answer
    x = 18,885.87

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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.