Home / 31,441.78-43,390.81-17,295.70

Finding the Fourth Proportional to 31,441.78, 43,390.81 and 17,295.70

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Solution

The fourth proportional to 31,441.78, 43,390.81 and 17,295.70 is: 23,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,441.78 : 43,390.81 = 17,295.70 : x
  2. Step 2: Convert to fraction form
    31,441.78/43,390.81 = 17,295.70/x
  3. Step 3: Cross multiply
    31,441.78x = 43,390.81 × 17,295.70
  4. Step 4: Simplify right side
    31,441.78x = 750,474,432.52
  5. Step 5: Solve for x
    x = 750,474,432.52/31,441.78
  6. Step 6: Final answer
    x = 23,868.70

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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.