Home / 31,362.89-43,280.70-17,215.43

Finding the Fourth Proportional to 31,362.89, 43,280.70 and 17,215.43

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Solution

The fourth proportional to 31,362.89, 43,280.70 and 17,215.43 is: 23,757.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,362.89 : 43,280.70 = 17,215.43 : x
  2. Step 2: Convert to fraction form
    31,362.89/43,280.70 = 17,215.43/x
  3. Step 3: Cross multiply
    31,362.89x = 43,280.70 × 17,215.43
  4. Step 4: Simplify right side
    31,362.89x = 745,095,644.80
  5. Step 5: Solve for x
    x = 745,095,644.80/31,362.89
  6. Step 6: Final answer
    x = 23,757.24

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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.