Home / 31,510.31-43,481.25-18,587.57

Finding the Fourth Proportional to 31,510.31, 43,481.25 and 18,587.57

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Solution

The fourth proportional to 31,510.31, 43,481.25 and 18,587.57 is: 25,649.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,510.31 : 43,481.25 = 18,587.57 : x
  2. Step 2: Convert to fraction form
    31,510.31/43,481.25 = 18,587.57/x
  3. Step 3: Cross multiply
    31,510.31x = 43,481.25 × 18,587.57
  4. Step 4: Simplify right side
    31,510.31x = 808,210,560.66
  5. Step 5: Solve for x
    x = 808,210,560.66/31,510.31
  6. Step 6: Final answer
    x = 25,649.09

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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.