Home / 40,439.40-60,659.10-20,711.40

Finding the Fourth Proportional to 40,439.40, 60,659.10 and 20,711.40

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Solution

The fourth proportional to 40,439.40, 60,659.10 and 20,711.40 is: 31,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,439.40 : 60,659.10 = 20,711.40 : x
  2. Step 2: Convert to fraction form
    40,439.40/60,659.10 = 20,711.40/x
  3. Step 3: Cross multiply
    40,439.40x = 60,659.10 × 20,711.40
  4. Step 4: Simplify right side
    40,439.40x = 1,256,334,883.74
  5. Step 5: Solve for x
    x = 1,256,334,883.74/40,439.40
  6. Step 6: Final answer
    x = 31,067.10

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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.