Home / 34,687.40-47,874.82-20,547.24

Finding the Fourth Proportional to 34,687.40, 47,874.82 and 20,547.24

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Solution

The fourth proportional to 34,687.40, 47,874.82 and 20,547.24 is: 28,358.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,687.40 : 47,874.82 = 20,547.24 : x
  2. Step 2: Convert to fraction form
    34,687.40/47,874.82 = 20,547.24/x
  3. Step 3: Cross multiply
    34,687.40x = 47,874.82 × 20,547.24
  4. Step 4: Simplify right side
    34,687.40x = 983,695,416.50
  5. Step 5: Solve for x
    x = 983,695,416.50/34,687.40
  6. Step 6: Final answer
    x = 28,358.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.