Home / 39,968.88-55,158.85-22,978.63

Finding the Fourth Proportional to 39,968.88, 55,158.85 and 22,978.63

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Solution

The fourth proportional to 39,968.88, 55,158.85 and 22,978.63 is: 31,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,968.88 : 55,158.85 = 22,978.63 : x
  2. Step 2: Convert to fraction form
    39,968.88/55,158.85 = 22,978.63/x
  3. Step 3: Cross multiply
    39,968.88x = 55,158.85 × 22,978.63
  4. Step 4: Simplify right side
    39,968.88x = 1,267,474,610.03
  5. Step 5: Solve for x
    x = 1,267,474,610.03/39,968.88
  6. Step 6: Final answer
    x = 31,711.53

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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.