Home / 28,114.16-42,157.46-9,387.76

Finding the Fourth Proportional to 28,114.16, 42,157.46 and 9,387.76

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Solution

The fourth proportional to 28,114.16, 42,157.46 and 9,387.76 is: 14,077.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.16 : 42,157.46 = 9,387.76 : x
  2. Step 2: Convert to fraction form
    28,114.16/42,157.46 = 9,387.76/x
  3. Step 3: Cross multiply
    28,114.16x = 42,157.46 × 9,387.76
  4. Step 4: Simplify right side
    28,114.16x = 395,764,116.69
  5. Step 5: Solve for x
    x = 395,764,116.69/28,114.16
  6. Step 6: Final answer
    x = 14,077.04

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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.