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Finding the Fourth Proportional to 38,265.68, 52,811.52 and 21,498.68

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Solution

The fourth proportional to 38,265.68, 52,811.52 and 21,498.68 is: 29,670.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,265.68 : 52,811.52 = 21,498.68 : x
  2. Step 2: Convert to fraction form
    38,265.68/52,811.52 = 21,498.68/x
  3. Step 3: Cross multiply
    38,265.68x = 52,811.52 × 21,498.68
  4. Step 4: Simplify right side
    38,265.68x = 1,135,377,968.79
  5. Step 5: Solve for x
    x = 1,135,377,968.79/38,265.68
  6. Step 6: Final answer
    x = 29,670.92

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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.