Home / 31,562.50-43,557.64-18,137.96

Finding the Fourth Proportional to 31,562.50, 43,557.64 and 18,137.96

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Solution

The fourth proportional to 31,562.50, 43,557.64 and 18,137.96 is: 25,031.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,562.50 : 43,557.64 = 18,137.96 : x
  2. Step 2: Convert to fraction form
    31,562.50/43,557.64 = 18,137.96/x
  3. Step 3: Cross multiply
    31,562.50x = 43,557.64 × 18,137.96
  4. Step 4: Simplify right side
    31,562.50x = 790,046,732.01
  5. Step 5: Solve for x
    x = 790,046,732.01/31,562.50
  6. Step 6: Final answer
    x = 25,031.18

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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.