Home / 30,223.80-41,702.40-18,284.76

Finding the Fourth Proportional to 30,223.80, 41,702.40 and 18,284.76

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Solution

The fourth proportional to 30,223.80, 41,702.40 and 18,284.76 is: 25,229.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,223.80 : 41,702.40 = 18,284.76 : x
  2. Step 2: Convert to fraction form
    30,223.80/41,702.40 = 18,284.76/x
  3. Step 3: Cross multiply
    30,223.80x = 41,702.40 × 18,284.76
  4. Step 4: Simplify right side
    30,223.80x = 762,518,375.42
  5. Step 5: Solve for x
    x = 762,518,375.42/30,223.80
  6. Step 6: Final answer
    x = 25,229.07

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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.