Home / 28,103.60-42,162.84-9,386.96

Finding the Fourth Proportional to 28,103.60, 42,162.84 and 9,386.96

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Solution

The fourth proportional to 28,103.60, 42,162.84 and 9,386.96 is: 14,082.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.60 : 42,162.84 = 9,386.96 : x
  2. Step 2: Convert to fraction form
    28,103.60/42,162.84 = 9,386.96/x
  3. Step 3: Cross multiply
    28,103.60x = 42,162.84 × 9,386.96
  4. Step 4: Simplify right side
    28,103.60x = 395,780,892.57
  5. Step 5: Solve for x
    x = 395,780,892.57/28,103.60
  6. Step 6: Final answer
    x = 14,082.93

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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.