Home / 21,419.76-29,527.84-15,026.97

Finding the Fourth Proportional to 21,419.76, 29,527.84 and 15,026.97

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Solution

The fourth proportional to 21,419.76, 29,527.84 and 15,026.97 is: 20,715.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,419.76 : 29,527.84 = 15,026.97 : x
  2. Step 2: Convert to fraction form
    21,419.76/29,527.84 = 15,026.97/x
  3. Step 3: Cross multiply
    21,419.76x = 29,527.84 × 15,026.97
  4. Step 4: Simplify right side
    21,419.76x = 443,713,965.84
  5. Step 5: Solve for x
    x = 443,713,965.84/21,419.76
  6. Step 6: Final answer
    x = 20,715.17

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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.