Home / 21,792.49-30,082.79-18,452.61

Finding the Fourth Proportional to 21,792.49, 30,082.79 and 18,452.61

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Solution

The fourth proportional to 21,792.49, 30,082.79 and 18,452.61 is: 25,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,792.49 : 30,082.79 = 18,452.61 : x
  2. Step 2: Convert to fraction form
    21,792.49/30,082.79 = 18,452.61/x
  3. Step 3: Cross multiply
    21,792.49x = 30,082.79 × 18,452.61
  4. Step 4: Simplify right side
    21,792.49x = 555,106,037.71
  5. Step 5: Solve for x
    x = 555,106,037.71/21,792.49
  6. Step 6: Final answer
    x = 25,472.35

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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.