Home / 28,654.96-42,971.50-11,122.52

Finding the Fourth Proportional to 28,654.96, 42,971.50 and 11,122.52

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Solution

The fourth proportional to 28,654.96, 42,971.50 and 11,122.52 is: 16,679.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,654.96 : 42,971.50 = 11,122.52 : x
  2. Step 2: Convert to fraction form
    28,654.96/42,971.50 = 11,122.52/x
  3. Step 3: Cross multiply
    28,654.96x = 42,971.50 × 11,122.52
  4. Step 4: Simplify right side
    28,654.96x = 477,951,368.18
  5. Step 5: Solve for x
    x = 477,951,368.18/28,654.96
  6. Step 6: Final answer
    x = 16,679.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.