Home / 40,994.24-61,445.12-20,947.68

Finding the Fourth Proportional to 40,994.24, 61,445.12 and 20,947.68

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Solution

The fourth proportional to 40,994.24, 61,445.12 and 20,947.68 is: 31,397.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,994.24 : 61,445.12 = 20,947.68 : x
  2. Step 2: Convert to fraction form
    40,994.24/61,445.12 = 20,947.68/x
  3. Step 3: Cross multiply
    40,994.24x = 61,445.12 × 20,947.68
  4. Step 4: Simplify right side
    40,994.24x = 1,287,132,606.58
  5. Step 5: Solve for x
    x = 1,287,132,606.58/40,994.24
  6. Step 6: Final answer
    x = 31,397.89

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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.