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Finding the Fourth Proportional to 47,346.80, 71,020.20 and 17,765.60

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Solution

The fourth proportional to 47,346.80, 71,020.20 and 17,765.60 is: 26,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,346.80 : 71,020.20 = 17,765.60 : x
  2. Step 2: Convert to fraction form
    47,346.80/71,020.20 = 17,765.60/x
  3. Step 3: Cross multiply
    47,346.80x = 71,020.20 × 17,765.60
  4. Step 4: Simplify right side
    47,346.80x = 1,261,716,465.12
  5. Step 5: Solve for x
    x = 1,261,716,465.12/47,346.80
  6. Step 6: Final answer
    x = 26,648.40

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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.