Home / 20,737.12-31,110.02-6,698.20

Finding the Fourth Proportional to 20,737.12, 31,110.02 and 6,698.20

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Solution

The fourth proportional to 20,737.12, 31,110.02 and 6,698.20 is: 10,048.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.12 : 31,110.02 = 6,698.20 : x
  2. Step 2: Convert to fraction form
    20,737.12/31,110.02 = 6,698.20/x
  3. Step 3: Cross multiply
    20,737.12x = 31,110.02 × 6,698.20
  4. Step 4: Simplify right side
    20,737.12x = 208,381,135.96
  5. Step 5: Solve for x
    x = 208,381,135.96/20,737.12
  6. Step 6: Final answer
    x = 10,048.70

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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.