Home / 30,126.92-41,551.71-18,177.80

Finding the Fourth Proportional to 30,126.92, 41,551.71 and 18,177.80

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Solution

The fourth proportional to 30,126.92, 41,551.71 and 18,177.80 is: 25,071.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,126.92 : 41,551.71 = 18,177.80 : x
  2. Step 2: Convert to fraction form
    30,126.92/41,551.71 = 18,177.80/x
  3. Step 3: Cross multiply
    30,126.92x = 41,551.71 × 18,177.80
  4. Step 4: Simplify right side
    30,126.92x = 755,318,674.04
  5. Step 5: Solve for x
    x = 755,318,674.04/30,126.92
  6. Step 6: Final answer
    x = 25,071.22

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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.