Home / 31,614.76-47,449.32-12,905.08

Finding the Fourth Proportional to 31,614.76, 47,449.32 and 12,905.08

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Solution

The fourth proportional to 31,614.76, 47,449.32 and 12,905.08 is: 19,368.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,614.76 : 47,449.32 = 12,905.08 : x
  2. Step 2: Convert to fraction form
    31,614.76/47,449.32 = 12,905.08/x
  3. Step 3: Cross multiply
    31,614.76x = 47,449.32 × 12,905.08
  4. Step 4: Simplify right side
    31,614.76x = 612,337,270.55
  5. Step 5: Solve for x
    x = 612,337,270.55/31,614.76
  6. Step 6: Final answer
    x = 19,368.71

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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.