Home / 21,543.38-29,726.23-11,982.01

Finding the Fourth Proportional to 21,543.38, 29,726.23 and 11,982.01

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Solution

The fourth proportional to 21,543.38, 29,726.23 and 11,982.01 is: 16,533.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,543.38 : 29,726.23 = 11,982.01 : x
  2. Step 2: Convert to fraction form
    21,543.38/29,726.23 = 11,982.01/x
  3. Step 3: Cross multiply
    21,543.38x = 29,726.23 × 11,982.01
  4. Step 4: Simplify right side
    21,543.38x = 356,179,925.21
  5. Step 5: Solve for x
    x = 356,179,925.21/21,543.38
  6. Step 6: Final answer
    x = 16,533.15

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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.