Home / 20,726.24-28,602.56-11,294.80

Finding the Fourth Proportional to 20,726.24, 28,602.56 and 11,294.80

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Solution

The fourth proportional to 20,726.24, 28,602.56 and 11,294.80 is: 15,587.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.24 : 28,602.56 = 11,294.80 : x
  2. Step 2: Convert to fraction form
    20,726.24/28,602.56 = 11,294.80/x
  3. Step 3: Cross multiply
    20,726.24x = 28,602.56 × 11,294.80
  4. Step 4: Simplify right side
    20,726.24x = 323,060,194.69
  5. Step 5: Solve for x
    x = 323,060,194.69/20,726.24
  6. Step 6: Final answer
    x = 15,587.01

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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.