Home / 28,652.55-42,976.80-12,006.51

Finding the Fourth Proportional to 28,652.55, 42,976.80 and 12,006.51

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Solution

The fourth proportional to 28,652.55, 42,976.80 and 12,006.51 is: 18,008.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,652.55 : 42,976.80 = 12,006.51 : x
  2. Step 2: Convert to fraction form
    28,652.55/42,976.80 = 12,006.51/x
  3. Step 3: Cross multiply
    28,652.55x = 42,976.80 × 12,006.51
  4. Step 4: Simplify right side
    28,652.55x = 516,001,378.97
  5. Step 5: Solve for x
    x = 516,001,378.97/28,652.55
  6. Step 6: Final answer
    x = 18,008.92

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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.