Home / 40,127.94-55,318.86-28,154.16

Finding the Fourth Proportional to 40,127.94, 55,318.86 and 28,154.16

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Solution

The fourth proportional to 40,127.94, 55,318.86 and 28,154.16 is: 38,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,127.94 : 55,318.86 = 28,154.16 : x
  2. Step 2: Convert to fraction form
    40,127.94/55,318.86 = 28,154.16/x
  3. Step 3: Cross multiply
    40,127.94x = 55,318.86 × 28,154.16
  4. Step 4: Simplify right side
    40,127.94x = 1,557,456,035.46
  5. Step 5: Solve for x
    x = 1,557,456,035.46/40,127.94
  6. Step 6: Final answer
    x = 38,812.26

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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.