Home / 42,440.74-63,564.22-20,269.74

Finding the Fourth Proportional to 42,440.74, 63,564.22 and 20,269.74

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Solution

The fourth proportional to 42,440.74, 63,564.22 and 20,269.74 is: 30,358.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,440.74 : 63,564.22 = 20,269.74 : x
  2. Step 2: Convert to fraction form
    42,440.74/63,564.22 = 20,269.74/x
  3. Step 3: Cross multiply
    42,440.74x = 63,564.22 × 20,269.74
  4. Step 4: Simplify right side
    42,440.74x = 1,288,430,212.70
  5. Step 5: Solve for x
    x = 1,288,430,212.70/42,440.74
  6. Step 6: Final answer
    x = 30,358.34

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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.