Home / 28,452.18-42,678.90-7,393.05

Finding the Fourth Proportional to 28,452.18, 42,678.90 and 7,393.05

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Solution

The fourth proportional to 28,452.18, 42,678.90 and 7,393.05 is: 11,089.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.18 : 42,678.90 = 7,393.05 : x
  2. Step 2: Convert to fraction form
    28,452.18/42,678.90 = 7,393.05/x
  3. Step 3: Cross multiply
    28,452.18x = 42,678.90 × 7,393.05
  4. Step 4: Simplify right side
    28,452.18x = 315,527,241.65
  5. Step 5: Solve for x
    x = 315,527,241.65/28,452.18
  6. Step 6: Final answer
    x = 11,089.74

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Similar ratio
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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.