Home / 22,082.76-30,442.98-15,784.20

Finding the Fourth Proportional to 22,082.76, 30,442.98 and 15,784.20

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Solution

The fourth proportional to 22,082.76, 30,442.98 and 15,784.20 is: 21,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,082.76 : 30,442.98 = 15,784.20 : x
  2. Step 2: Convert to fraction form
    22,082.76/30,442.98 = 15,784.20/x
  3. Step 3: Cross multiply
    22,082.76x = 30,442.98 × 15,784.20
  4. Step 4: Simplify right side
    22,082.76x = 480,518,084.92
  5. Step 5: Solve for x
    x = 480,518,084.92/22,082.76
  6. Step 6: Final answer
    x = 21,759.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.