Home / 20,700.53-31,041.45-5,905.92

Finding the Fourth Proportional to 20,700.53, 31,041.45 and 5,905.92

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Solution

The fourth proportional to 20,700.53, 31,041.45 and 5,905.92 is: 8,856.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,700.53 : 31,041.45 = 5,905.92 : x
  2. Step 2: Convert to fraction form
    20,700.53/31,041.45 = 5,905.92/x
  3. Step 3: Cross multiply
    20,700.53x = 31,041.45 × 5,905.92
  4. Step 4: Simplify right side
    20,700.53x = 183,328,320.38
  5. Step 5: Solve for x
    x = 183,328,320.38/20,700.53
  6. Step 6: Final answer
    x = 8,856.22

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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.