Home / 31,255.02-43,130.88-17,107.56

Finding the Fourth Proportional to 31,255.02, 43,130.88 and 17,107.56

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Solution

The fourth proportional to 31,255.02, 43,130.88 and 17,107.56 is: 23,607.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,255.02 : 43,130.88 = 17,107.56 : x
  2. Step 2: Convert to fraction form
    31,255.02/43,130.88 = 17,107.56/x
  3. Step 3: Cross multiply
    31,255.02x = 43,130.88 × 17,107.56
  4. Step 4: Simplify right side
    31,255.02x = 737,864,117.45
  5. Step 5: Solve for x
    x = 737,864,117.45/31,255.02
  6. Step 6: Final answer
    x = 23,607.86

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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.