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Finding the Fourth Proportional to 34,765.72, 47,973.14 and 21,337.54

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Solution

The fourth proportional to 34,765.72, 47,973.14 and 21,337.54 is: 29,443.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,765.72 : 47,973.14 = 21,337.54 : x
  2. Step 2: Convert to fraction form
    34,765.72/47,973.14 = 21,337.54/x
  3. Step 3: Cross multiply
    34,765.72x = 47,973.14 × 21,337.54
  4. Step 4: Simplify right side
    34,765.72x = 1,023,628,793.68
  5. Step 5: Solve for x
    x = 1,023,628,793.68/34,765.72
  6. Step 6: Final answer
    x = 29,443.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.