Home / 41,987.94-57,947.45-31,359.12

Finding the Fourth Proportional to 41,987.94, 57,947.45 and 31,359.12

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Solution

The fourth proportional to 41,987.94, 57,947.45 and 31,359.12 is: 43,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,987.94 : 57,947.45 = 31,359.12 : x
  2. Step 2: Convert to fraction form
    41,987.94/57,947.45 = 31,359.12/x
  3. Step 3: Cross multiply
    41,987.94x = 57,947.45 × 31,359.12
  4. Step 4: Simplify right side
    41,987.94x = 1,817,181,038.24
  5. Step 5: Solve for x
    x = 1,817,181,038.24/41,987.94
  6. Step 6: Final answer
    x = 43,278.64

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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.