Home / 31,575.44-47,347.80-18,432.08

Finding the Fourth Proportional to 31,575.44, 47,347.80 and 18,432.08

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Solution

The fourth proportional to 31,575.44, 47,347.80 and 18,432.08 is: 27,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,575.44 : 47,347.80 = 18,432.08 : x
  2. Step 2: Convert to fraction form
    31,575.44/47,347.80 = 18,432.08/x
  3. Step 3: Cross multiply
    31,575.44x = 47,347.80 × 18,432.08
  4. Step 4: Simplify right side
    31,575.44x = 872,718,437.42
  5. Step 5: Solve for x
    x = 872,718,437.42/31,575.44
  6. Step 6: Final answer
    x = 27,639.15

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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.