Home / 40,285.64-60,422.22-20,578.76

Finding the Fourth Proportional to 40,285.64, 60,422.22 and 20,578.76

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Solution

The fourth proportional to 40,285.64, 60,422.22 and 20,578.76 is: 30,864.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,285.64 : 60,422.22 = 20,578.76 : x
  2. Step 2: Convert to fraction form
    40,285.64/60,422.22 = 20,578.76/x
  3. Step 3: Cross multiply
    40,285.64x = 60,422.22 × 20,578.76
  4. Step 4: Simplify right side
    40,285.64x = 1,243,414,364.05
  5. Step 5: Solve for x
    x = 1,243,414,364.05/40,285.64
  6. Step 6: Final answer
    x = 30,864.95

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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.