Home / 31,062.24-42,860.04-18,319.43

Finding the Fourth Proportional to 31,062.24, 42,860.04 and 18,319.43

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Solution

The fourth proportional to 31,062.24, 42,860.04 and 18,319.43 is: 25,277.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,062.24 : 42,860.04 = 18,319.43 : x
  2. Step 2: Convert to fraction form
    31,062.24/42,860.04 = 18,319.43/x
  3. Step 3: Cross multiply
    31,062.24x = 42,860.04 × 18,319.43
  4. Step 4: Simplify right side
    31,062.24x = 785,171,288.28
  5. Step 5: Solve for x
    x = 785,171,288.28/31,062.24
  6. Step 6: Final answer
    x = 25,277.36

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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.