Home / 25,472.13-38,188.35-12,138.18

Finding the Fourth Proportional to 25,472.13, 38,188.35 and 12,138.18

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Solution

The fourth proportional to 25,472.13, 38,188.35 and 12,138.18 is: 18,197.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,472.13 : 38,188.35 = 12,138.18 : x
  2. Step 2: Convert to fraction form
    25,472.13/38,188.35 = 12,138.18/x
  3. Step 3: Cross multiply
    25,472.13x = 38,188.35 × 12,138.18
  4. Step 4: Simplify right side
    25,472.13x = 463,537,066.20
  5. Step 5: Solve for x
    x = 463,537,066.20/25,472.13
  6. Step 6: Final answer
    x = 18,197.81

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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.