Home / 20,070.76-30,124.82-10,217.41

Finding the Fourth Proportional to 20,070.76, 30,124.82 and 10,217.41

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Solution

The fourth proportional to 20,070.76, 30,124.82 and 10,217.41 is: 15,335.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.76 : 30,124.82 = 10,217.41 : x
  2. Step 2: Convert to fraction form
    20,070.76/30,124.82 = 10,217.41/x
  3. Step 3: Cross multiply
    20,070.76x = 30,124.82 × 10,217.41
  4. Step 4: Simplify right side
    20,070.76x = 307,797,637.12
  5. Step 5: Solve for x
    x = 307,797,637.12/20,070.76
  6. Step 6: Final answer
    x = 15,335.62

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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.