Home / 42,212.45-63,330.20-14,137.13

Finding the Fourth Proportional to 42,212.45, 63,330.20 and 14,137.13

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Solution

The fourth proportional to 42,212.45, 63,330.20 and 14,137.13 is: 21,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,212.45 : 63,330.20 = 14,137.13 : x
  2. Step 2: Convert to fraction form
    42,212.45/63,330.20 = 14,137.13/x
  3. Step 3: Cross multiply
    42,212.45x = 63,330.20 × 14,137.13
  4. Step 4: Simplify right side
    42,212.45x = 895,307,270.33
  5. Step 5: Solve for x
    x = 895,307,270.33/42,212.45
  6. Step 6: Final answer
    x = 21,209.55

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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.