Home / 28,237.83-42,335.66-16,990.53

Finding the Fourth Proportional to 28,237.83, 42,335.66 and 16,990.53

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Solution

The fourth proportional to 28,237.83, 42,335.66 and 16,990.53 is: 25,473.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.83 : 42,335.66 = 16,990.53 : x
  2. Step 2: Convert to fraction form
    28,237.83/42,335.66 = 16,990.53/x
  3. Step 3: Cross multiply
    28,237.83x = 42,335.66 × 16,990.53
  4. Step 4: Simplify right side
    28,237.83x = 719,305,301.30
  5. Step 5: Solve for x
    x = 719,305,301.30/28,237.83
  6. Step 6: Final answer
    x = 25,473.11

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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.