Home / 21,726.64-29,964.88-18,264.16

Finding the Fourth Proportional to 21,726.64, 29,964.88 and 18,264.16

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Solution

The fourth proportional to 21,726.64, 29,964.88 and 18,264.16 is: 25,189.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,726.64 : 29,964.88 = 18,264.16 : x
  2. Step 2: Convert to fraction form
    21,726.64/29,964.88 = 18,264.16/x
  3. Step 3: Cross multiply
    21,726.64x = 29,964.88 × 18,264.16
  4. Step 4: Simplify right side
    21,726.64x = 547,283,362.70
  5. Step 5: Solve for x
    x = 547,283,362.70/21,726.64
  6. Step 6: Final answer
    x = 25,189.51

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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.