Home / 31,278.72-43,162.95-17,849.46

Finding the Fourth Proportional to 31,278.72, 43,162.95 and 17,849.46

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Solution

The fourth proportional to 31,278.72, 43,162.95 and 17,849.46 is: 24,631.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,278.72 : 43,162.95 = 17,849.46 : x
  2. Step 2: Convert to fraction form
    31,278.72/43,162.95 = 17,849.46/x
  3. Step 3: Cross multiply
    31,278.72x = 43,162.95 × 17,849.46
  4. Step 4: Simplify right side
    31,278.72x = 770,435,349.51
  5. Step 5: Solve for x
    x = 770,435,349.51/31,278.72
  6. Step 6: Final answer
    x = 24,631.29

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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.