Home / 40,947.12-61,306.62-20,913.23

Finding the Fourth Proportional to 40,947.12, 61,306.62 and 20,913.23

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Solution

The fourth proportional to 40,947.12, 61,306.62 and 20,913.23 is: 31,311.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,947.12 : 61,306.62 = 20,913.23 : x
  2. Step 2: Convert to fraction form
    40,947.12/61,306.62 = 20,913.23/x
  3. Step 3: Cross multiply
    40,947.12x = 61,306.62 × 20,913.23
  4. Step 4: Simplify right side
    40,947.12x = 1,282,119,444.58
  5. Step 5: Solve for x
    x = 1,282,119,444.58/40,947.12
  6. Step 6: Final answer
    x = 31,311.59

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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.