Home / 31,270.71-43,153.14-17,123.55

Finding the Fourth Proportional to 31,270.71, 43,153.14 and 17,123.55

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Solution

The fourth proportional to 31,270.71, 43,153.14 and 17,123.55 is: 23,630.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,270.71 : 43,153.14 = 17,123.55 : x
  2. Step 2: Convert to fraction form
    31,270.71/43,153.14 = 17,123.55/x
  3. Step 3: Cross multiply
    31,270.71x = 43,153.14 × 17,123.55
  4. Step 4: Simplify right side
    31,270.71x = 738,934,950.45
  5. Step 5: Solve for x
    x = 738,934,950.45/31,270.71
  6. Step 6: Final answer
    x = 23,630.26

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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.