Home / 47,482.17-71,190.44-20,815.35

Finding the Fourth Proportional to 47,482.17, 71,190.44 and 20,815.35

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Solution

The fourth proportional to 47,482.17, 71,190.44 and 20,815.35 is: 31,208.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,482.17 : 71,190.44 = 20,815.35 : x
  2. Step 2: Convert to fraction form
    47,482.17/71,190.44 = 20,815.35/x
  3. Step 3: Cross multiply
    47,482.17x = 71,190.44 × 20,815.35
  4. Step 4: Simplify right side
    47,482.17x = 1,481,853,925.25
  5. Step 5: Solve for x
    x = 1,481,853,925.25/47,482.17
  6. Step 6: Final answer
    x = 31,208.64

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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.