Home / 31,277.02-43,162.30-17,129.86

Finding the Fourth Proportional to 31,277.02, 43,162.30 and 17,129.86

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Solution

The fourth proportional to 31,277.02, 43,162.30 and 17,129.86 is: 23,639.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,277.02 : 43,162.30 = 17,129.86 : x
  2. Step 2: Convert to fraction form
    31,277.02/43,162.30 = 17,129.86/x
  3. Step 3: Cross multiply
    31,277.02x = 43,162.30 × 17,129.86
  4. Step 4: Simplify right side
    31,277.02x = 739,364,156.28
  5. Step 5: Solve for x
    x = 739,364,156.28/31,277.02
  6. Step 6: Final answer
    x = 23,639.21

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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.