Home / 31,801.50-43,888.12-18,373.32

Finding the Fourth Proportional to 31,801.50, 43,888.12 and 18,373.32

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Solution

The fourth proportional to 31,801.50, 43,888.12 and 18,373.32 is: 25,356.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,801.50 : 43,888.12 = 18,373.32 : x
  2. Step 2: Convert to fraction form
    31,801.50/43,888.12 = 18,373.32/x
  3. Step 3: Cross multiply
    31,801.50x = 43,888.12 × 18,373.32
  4. Step 4: Simplify right side
    31,801.50x = 806,370,472.96
  5. Step 5: Solve for x
    x = 806,370,472.96/31,801.50
  6. Step 6: Final answer
    x = 25,356.37

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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.