Home / 47,110.28-70,612.80-20,425.46

Finding the Fourth Proportional to 47,110.28, 70,612.80 and 20,425.46

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Solution

The fourth proportional to 47,110.28, 70,612.80 and 20,425.46 is: 30,615.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,110.28 : 70,612.80 = 20,425.46 : x
  2. Step 2: Convert to fraction form
    47,110.28/70,612.80 = 20,425.46/x
  3. Step 3: Cross multiply
    47,110.28x = 70,612.80 × 20,425.46
  4. Step 4: Simplify right side
    47,110.28x = 1,442,298,921.89
  5. Step 5: Solve for x
    x = 1,442,298,921.89/47,110.28
  6. Step 6: Final answer
    x = 30,615.38

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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.