Home / 31,943.64-43,987.14-31,235.58

Finding the Fourth Proportional to 31,943.64, 43,987.14 and 31,235.58

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Solution

The fourth proportional to 31,943.64, 43,987.14 and 31,235.58 is: 43,012.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,943.64 : 43,987.14 = 31,235.58 : x
  2. Step 2: Convert to fraction form
    31,943.64/43,987.14 = 31,235.58/x
  3. Step 3: Cross multiply
    31,943.64x = 43,987.14 × 31,235.58
  4. Step 4: Simplify right side
    31,943.64x = 1,373,963,830.44
  5. Step 5: Solve for x
    x = 1,373,963,830.44/31,943.64
  6. Step 6: Final answer
    x = 43,012.12

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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.