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Finding the Fourth Proportional to 34,992.78, 48,275.49 and 20,646.92

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Solution

The fourth proportional to 34,992.78, 48,275.49 and 20,646.92 is: 28,484.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,992.78 : 48,275.49 = 20,646.92 : x
  2. Step 2: Convert to fraction form
    34,992.78/48,275.49 = 20,646.92/x
  3. Step 3: Cross multiply
    34,992.78x = 48,275.49 × 20,646.92
  4. Step 4: Simplify right side
    34,992.78x = 996,739,938.61
  5. Step 5: Solve for x
    x = 996,739,938.61/34,992.78
  6. Step 6: Final answer
    x = 28,484.16

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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.