Home / 43,194.20-64,718.40-20,959.70

Finding the Fourth Proportional to 43,194.20, 64,718.40 and 20,959.70

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Solution

The fourth proportional to 43,194.20, 64,718.40 and 20,959.70 is: 31,404.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,194.20 : 64,718.40 = 20,959.70 : x
  2. Step 2: Convert to fraction form
    43,194.20/64,718.40 = 20,959.70/x
  3. Step 3: Cross multiply
    43,194.20x = 64,718.40 × 20,959.70
  4. Step 4: Simplify right side
    43,194.20x = 1,356,478,248.48
  5. Step 5: Solve for x
    x = 1,356,478,248.48/43,194.20
  6. Step 6: Final answer
    x = 31,404.18

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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.