Home / 31,613.60-47,427.80-16,819.16

Finding the Fourth Proportional to 31,613.60, 47,427.80 and 16,819.16

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Solution

The fourth proportional to 31,613.60, 47,427.80 and 16,819.16 is: 25,232.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,613.60 : 47,427.80 = 16,819.16 : x
  2. Step 2: Convert to fraction form
    31,613.60/47,427.80 = 16,819.16/x
  3. Step 3: Cross multiply
    31,613.60x = 47,427.80 × 16,819.16
  4. Step 4: Simplify right side
    31,613.60x = 797,695,435.41
  5. Step 5: Solve for x
    x = 797,695,435.41/31,613.60
  6. Step 6: Final answer
    x = 25,232.66

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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.