Home / 31,204.72-43,062.60-18,629.20

Finding the Fourth Proportional to 31,204.72, 43,062.60 and 18,629.20

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Solution

The fourth proportional to 31,204.72, 43,062.60 and 18,629.20 is: 25,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,204.72 : 43,062.60 = 18,629.20 : x
  2. Step 2: Convert to fraction form
    31,204.72/43,062.60 = 18,629.20/x
  3. Step 3: Cross multiply
    31,204.72x = 43,062.60 × 18,629.20
  4. Step 4: Simplify right side
    31,204.72x = 802,221,787.92
  5. Step 5: Solve for x
    x = 802,221,787.92/31,204.72
  6. Step 6: Final answer
    x = 25,708.35

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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.