Home / 31,321.53-42,959.09-29,627.01

Finding the Fourth Proportional to 31,321.53, 42,959.09 and 29,627.01

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Solution

The fourth proportional to 31,321.53, 42,959.09 and 29,627.01 is: 40,634.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,321.53 : 42,959.09 = 29,627.01 : x
  2. Step 2: Convert to fraction form
    31,321.53/42,959.09 = 29,627.01/x
  3. Step 3: Cross multiply
    31,321.53x = 42,959.09 × 29,627.01
  4. Step 4: Simplify right side
    31,321.53x = 1,272,749,463.09
  5. Step 5: Solve for x
    x = 1,272,749,463.09/31,321.53
  6. Step 6: Final answer
    x = 40,634.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.