Home / 40,143.48-55,397.22-22,238.46

Finding the Fourth Proportional to 40,143.48, 55,397.22 and 22,238.46

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Solution

The fourth proportional to 40,143.48, 55,397.22 and 22,238.46 is: 30,688.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,143.48 : 55,397.22 = 22,238.46 : x
  2. Step 2: Convert to fraction form
    40,143.48/55,397.22 = 22,238.46/x
  3. Step 3: Cross multiply
    40,143.48x = 55,397.22 × 22,238.46
  4. Step 4: Simplify right side
    40,143.48x = 1,231,948,861.08
  5. Step 5: Solve for x
    x = 1,231,948,861.08/40,143.48
  6. Step 6: Final answer
    x = 30,688.64

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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.