Home / 20,726.25-28,602.23-11,294.81

Finding the Fourth Proportional to 20,726.25, 28,602.23 and 11,294.81

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Solution

The fourth proportional to 20,726.25, 28,602.23 and 11,294.81 is: 15,586.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.25 : 28,602.23 = 11,294.81 : x
  2. Step 2: Convert to fraction form
    20,726.25/28,602.23 = 11,294.81/x
  3. Step 3: Cross multiply
    20,726.25x = 28,602.23 × 11,294.81
  4. Step 4: Simplify right side
    20,726.25x = 323,056,768.46
  5. Step 5: Solve for x
    x = 323,056,768.46/20,726.25
  6. Step 6: Final answer
    x = 15,586.84

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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.