Home / 28,330.78-42,496.15-25,984.18

Finding the Fourth Proportional to 28,330.78, 42,496.15 and 25,984.18

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Solution

The fourth proportional to 28,330.78, 42,496.15 and 25,984.18 is: 38,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.78 : 42,496.15 = 25,984.18 : x
  2. Step 2: Convert to fraction form
    28,330.78/42,496.15 = 25,984.18/x
  3. Step 3: Cross multiply
    28,330.78x = 42,496.15 × 25,984.18
  4. Step 4: Simplify right side
    28,330.78x = 1,104,227,480.99
  5. Step 5: Solve for x
    x = 1,104,227,480.99/28,330.78
  6. Step 6: Final answer
    x = 38,976.25

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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.