Home / 47,148.48-70,747.02-20,871.68

Finding the Fourth Proportional to 47,148.48, 70,747.02 and 20,871.68

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Solution

The fourth proportional to 47,148.48, 70,747.02 and 20,871.68 is: 31,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,148.48 : 70,747.02 = 20,871.68 : x
  2. Step 2: Convert to fraction form
    47,148.48/70,747.02 = 20,871.68/x
  3. Step 3: Cross multiply
    47,148.48x = 70,747.02 × 20,871.68
  4. Step 4: Simplify right side
    47,148.48x = 1,476,608,808.66
  5. Step 5: Solve for x
    x = 1,476,608,808.66/47,148.48
  6. Step 6: Final answer
    x = 31,318.27

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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.