Home / 28,470.14-42,711.88-9,750.38

Finding the Fourth Proportional to 28,470.14, 42,711.88 and 9,750.38

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Solution

The fourth proportional to 28,470.14, 42,711.88 and 9,750.38 is: 14,627.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.14 : 42,711.88 = 9,750.38 : x
  2. Step 2: Convert to fraction form
    28,470.14/42,711.88 = 9,750.38/x
  3. Step 3: Cross multiply
    28,470.14x = 42,711.88 × 9,750.38
  4. Step 4: Simplify right side
    28,470.14x = 416,457,060.51
  5. Step 5: Solve for x
    x = 416,457,060.51/28,470.14
  6. Step 6: Final answer
    x = 14,627.85

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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.