Home / 20,071.08-30,124.89-10,217.43

Finding the Fourth Proportional to 20,071.08, 30,124.89 and 10,217.43

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Solution

The fourth proportional to 20,071.08, 30,124.89 and 10,217.43 is: 15,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.08 : 30,124.89 = 10,217.43 : x
  2. Step 2: Convert to fraction form
    20,071.08/30,124.89 = 10,217.43/x
  3. Step 3: Cross multiply
    20,071.08x = 30,124.89 × 10,217.43
  4. Step 4: Simplify right side
    20,071.08x = 307,798,954.83
  5. Step 5: Solve for x
    x = 307,798,954.83/20,071.08
  6. Step 6: Final answer
    x = 15,335.45

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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.