Home / 15,531.68-23,278.08-12,231.74

Finding the Fourth Proportional to 15,531.68, 23,278.08 and 12,231.74

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Solution

The fourth proportional to 15,531.68, 23,278.08 and 12,231.74 is: 18,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,531.68 : 23,278.08 = 12,231.74 : x
  2. Step 2: Convert to fraction form
    15,531.68/23,278.08 = 12,231.74/x
  3. Step 3: Cross multiply
    15,531.68x = 23,278.08 × 12,231.74
  4. Step 4: Simplify right side
    15,531.68x = 284,731,526.32
  5. Step 5: Solve for x
    x = 284,731,526.32/15,531.68
  6. Step 6: Final answer
    x = 18,332.30

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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.