Home / 25,613.04-38,420.76-12,449.72

Finding the Fourth Proportional to 25,613.04, 38,420.76 and 12,449.72

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Solution

The fourth proportional to 25,613.04, 38,420.76 and 12,449.72 is: 18,675.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,613.04 : 38,420.76 = 12,449.72 : x
  2. Step 2: Convert to fraction form
    25,613.04/38,420.76 = 12,449.72/x
  3. Step 3: Cross multiply
    25,613.04x = 38,420.76 × 12,449.72
  4. Step 4: Simplify right side
    25,613.04x = 478,327,704.19
  5. Step 5: Solve for x
    x = 478,327,704.19/25,613.04
  6. Step 6: Final answer
    x = 18,675.16

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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.