Home / 47,875.68-71,818.31-18,318.38

Finding the Fourth Proportional to 47,875.68, 71,818.31 and 18,318.38

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Solution

The fourth proportional to 47,875.68, 71,818.31 and 18,318.38 is: 27,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,875.68 : 71,818.31 = 18,318.38 : x
  2. Step 2: Convert to fraction form
    47,875.68/71,818.31 = 18,318.38/x
  3. Step 3: Cross multiply
    47,875.68x = 71,818.31 × 18,318.38
  4. Step 4: Simplify right side
    47,875.68x = 1,315,594,780.24
  5. Step 5: Solve for x
    x = 1,315,594,780.24/47,875.68
  6. Step 6: Final answer
    x = 27,479.40

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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.