Home / 31,276.89-43,162.13-17,129.73

Finding the Fourth Proportional to 31,276.89, 43,162.13 and 17,129.73

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Solution

The fourth proportional to 31,276.89, 43,162.13 and 17,129.73 is: 23,639.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,276.89 : 43,162.13 = 17,129.73 : x
  2. Step 2: Convert to fraction form
    31,276.89/43,162.13 = 17,129.73/x
  3. Step 3: Cross multiply
    31,276.89x = 43,162.13 × 17,129.73
  4. Step 4: Simplify right side
    31,276.89x = 739,355,547.48
  5. Step 5: Solve for x
    x = 739,355,547.48/31,276.89
  6. Step 6: Final answer
    x = 23,639.04

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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.