Home / 40,157.61-55,425.23-23,172.79

Finding the Fourth Proportional to 40,157.61, 55,425.23 and 23,172.79

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Solution

The fourth proportional to 40,157.61, 55,425.23 and 23,172.79 is: 31,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,157.61 : 55,425.23 = 23,172.79 : x
  2. Step 2: Convert to fraction form
    40,157.61/55,425.23 = 23,172.79/x
  3. Step 3: Cross multiply
    40,157.61x = 55,425.23 × 23,172.79
  4. Step 4: Simplify right side
    40,157.61x = 1,284,357,215.49
  5. Step 5: Solve for x
    x = 1,284,357,215.49/40,157.61
  6. Step 6: Final answer
    x = 31,982.91

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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.