Home / 34,306.74-47,329.11-20,875.86

Finding the Fourth Proportional to 34,306.74, 47,329.11 and 20,875.86

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Solution

The fourth proportional to 34,306.74, 47,329.11 and 20,875.86 is: 28,800.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,306.74 : 47,329.11 = 20,875.86 : x
  2. Step 2: Convert to fraction form
    34,306.74/47,329.11 = 20,875.86/x
  3. Step 3: Cross multiply
    34,306.74x = 47,329.11 × 20,875.86
  4. Step 4: Simplify right side
    34,306.74x = 988,035,874.28
  5. Step 5: Solve for x
    x = 988,035,874.28/34,306.74
  6. Step 6: Final answer
    x = 28,800.05

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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.