Home / 31,043.88-42,747.30-27,807.24

Finding the Fourth Proportional to 31,043.88, 42,747.30 and 27,807.24

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Solution

The fourth proportional to 31,043.88, 42,747.30 and 27,807.24 is: 38,290.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,043.88 : 42,747.30 = 27,807.24 : x
  2. Step 2: Convert to fraction form
    31,043.88/42,747.30 = 27,807.24/x
  3. Step 3: Cross multiply
    31,043.88x = 42,747.30 × 27,807.24
  4. Step 4: Simplify right side
    31,043.88x = 1,188,684,430.45
  5. Step 5: Solve for x
    x = 1,188,684,430.45/31,043.88
  6. Step 6: Final answer
    x = 38,290.46

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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.