Home / 40,384.56-55,711.56-28,454.48

Finding the Fourth Proportional to 40,384.56, 55,711.56 and 28,454.48

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Solution

The fourth proportional to 40,384.56, 55,711.56 and 28,454.48 is: 39,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,384.56 : 55,711.56 = 28,454.48 : x
  2. Step 2: Convert to fraction form
    40,384.56/55,711.56 = 28,454.48/x
  3. Step 3: Cross multiply
    40,384.56x = 55,711.56 × 28,454.48
  4. Step 4: Simplify right side
    40,384.56x = 1,585,243,469.79
  5. Step 5: Solve for x
    x = 1,585,243,469.79/40,384.56
  6. Step 6: Final answer
    x = 39,253.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.