Home / 31,890.08-47,817.12-15,254.12

Finding the Fourth Proportional to 31,890.08, 47,817.12 and 15,254.12

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Solution

The fourth proportional to 31,890.08, 47,817.12 and 15,254.12 is: 22,872.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890.08 : 47,817.12 = 15,254.12 : x
  2. Step 2: Convert to fraction form
    31,890.08/47,817.12 = 15,254.12/x
  3. Step 3: Cross multiply
    31,890.08x = 47,817.12 × 15,254.12
  4. Step 4: Simplify right side
    31,890.08x = 729,408,086.53
  5. Step 5: Solve for x
    x = 729,408,086.53/31,890.08
  6. Step 6: Final answer
    x = 22,872.57

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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.