Home / 20,053.11-27,643.82-15,264.72

Finding the Fourth Proportional to 20,053.11, 27,643.82 and 15,264.72

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Solution

The fourth proportional to 20,053.11, 27,643.82 and 15,264.72 is: 21,042.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,053.11 : 27,643.82 = 15,264.72 : x
  2. Step 2: Convert to fraction form
    20,053.11/27,643.82 = 15,264.72/x
  3. Step 3: Cross multiply
    20,053.11x = 27,643.82 × 15,264.72
  4. Step 4: Simplify right side
    20,053.11x = 421,975,071.97
  5. Step 5: Solve for x
    x = 421,975,071.97/20,053.11
  6. Step 6: Final answer
    x = 21,042.87

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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.