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Finding the Fourth Proportional to 29,503.76, 40,669.08 and 20,055.92

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Solution

The fourth proportional to 29,503.76, 40,669.08 and 20,055.92 is: 27,645.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,503.76 : 40,669.08 = 20,055.92 : x
  2. Step 2: Convert to fraction form
    29,503.76/40,669.08 = 20,055.92/x
  3. Step 3: Cross multiply
    29,503.76x = 40,669.08 × 20,055.92
  4. Step 4: Simplify right side
    29,503.76x = 815,655,814.95
  5. Step 5: Solve for x
    x = 815,655,814.95/29,503.76
  6. Step 6: Final answer
    x = 27,645.83

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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.