Home / 20,042.40-30,063.86-18,824.70

Finding the Fourth Proportional to 20,042.40, 30,063.86 and 18,824.70

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Solution

The fourth proportional to 20,042.40, 30,063.86 and 18,824.70 is: 28,237.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.40 : 30,063.86 = 18,824.70 : x
  2. Step 2: Convert to fraction form
    20,042.40/30,063.86 = 18,824.70/x
  3. Step 3: Cross multiply
    20,042.40x = 30,063.86 × 18,824.70
  4. Step 4: Simplify right side
    20,042.40x = 565,943,145.34
  5. Step 5: Solve for x
    x = 565,943,145.34/20,042.40
  6. Step 6: Final answer
    x = 28,237.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.