Home / 31,432.64-47,141.64-9,240.08

Finding the Fourth Proportional to 31,432.64, 47,141.64 and 9,240.08

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Solution

The fourth proportional to 31,432.64, 47,141.64 and 9,240.08 is: 13,857.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,432.64 : 47,141.64 = 9,240.08 : x
  2. Step 2: Convert to fraction form
    31,432.64/47,141.64 = 9,240.08/x
  3. Step 3: Cross multiply
    31,432.64x = 47,141.64 × 9,240.08
  4. Step 4: Simplify right side
    31,432.64x = 435,592,289.22
  5. Step 5: Solve for x
    x = 435,592,289.22/31,432.64
  6. Step 6: Final answer
    x = 13,857.96

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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.