Home / 31,362.30-43,278.66-17,215.47

Finding the Fourth Proportional to 31,362.30, 43,278.66 and 17,215.47

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Solution

The fourth proportional to 31,362.30, 43,278.66 and 17,215.47 is: 23,756.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,362.30 : 43,278.66 = 17,215.47 : x
  2. Step 2: Convert to fraction form
    31,362.30/43,278.66 = 17,215.47/x
  3. Step 3: Cross multiply
    31,362.30x = 43,278.66 × 17,215.47
  4. Step 4: Simplify right side
    31,362.30x = 745,062,472.87
  5. Step 5: Solve for x
    x = 745,062,472.87/31,362.30
  6. Step 6: Final answer
    x = 23,756.63

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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.