Home / 28,195.17-42,280.02-8,469.87

Finding the Fourth Proportional to 28,195.17, 42,280.02 and 8,469.87

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Solution

The fourth proportional to 28,195.17, 42,280.02 and 8,469.87 is: 12,700.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195.17 : 42,280.02 = 8,469.87 : x
  2. Step 2: Convert to fraction form
    28,195.17/42,280.02 = 8,469.87/x
  3. Step 3: Cross multiply
    28,195.17x = 42,280.02 × 8,469.87
  4. Step 4: Simplify right side
    28,195.17x = 358,106,273.00
  5. Step 5: Solve for x
    x = 358,106,273.00/28,195.17
  6. Step 6: Final answer
    x = 12,700.98

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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.