Home / 31,436.31-43,381.23-17,289.15

Finding the Fourth Proportional to 31,436.31, 43,381.23 and 17,289.15

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Solution

The fourth proportional to 31,436.31, 43,381.23 and 17,289.15 is: 23,858.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.31 : 43,381.23 = 17,289.15 : x
  2. Step 2: Convert to fraction form
    31,436.31/43,381.23 = 17,289.15/x
  3. Step 3: Cross multiply
    31,436.31x = 43,381.23 × 17,289.15
  4. Step 4: Simplify right side
    31,436.31x = 750,024,592.65
  5. Step 5: Solve for x
    x = 750,024,592.65/31,436.31
  6. Step 6: Final answer
    x = 23,858.54

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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.