Home / 15,432.09-23,139.22-13,586.91

Finding the Fourth Proportional to 15,432.09, 23,139.22 and 13,586.91

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Solution

The fourth proportional to 15,432.09, 23,139.22 and 13,586.91 is: 20,372.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.09 : 23,139.22 = 13,586.91 : x
  2. Step 2: Convert to fraction form
    15,432.09/23,139.22 = 13,586.91/x
  3. Step 3: Cross multiply
    15,432.09x = 23,139.22 × 13,586.91
  4. Step 4: Simplify right side
    15,432.09x = 314,390,499.61
  5. Step 5: Solve for x
    x = 314,390,499.61/15,432.09
  6. Step 6: Final answer
    x = 20,372.52

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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.