Home / 28,191.28-42,283.68-9,470.56

Finding the Fourth Proportional to 28,191.28, 42,283.68 and 9,470.56

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Solution

The fourth proportional to 28,191.28, 42,283.68 and 9,470.56 is: 14,204.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.28 : 42,283.68 = 9,470.56 : x
  2. Step 2: Convert to fraction form
    28,191.28/42,283.68 = 9,470.56/x
  3. Step 3: Cross multiply
    28,191.28x = 42,283.68 × 9,470.56
  4. Step 4: Simplify right side
    28,191.28x = 400,450,128.46
  5. Step 5: Solve for x
    x = 400,450,128.46/28,191.28
  6. Step 6: Final answer
    x = 14,204.75

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1.5x scale

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.