Home / 47,681.66-71,523.85-12,621.32

Finding the Fourth Proportional to 47,681.66, 71,523.85 and 12,621.32

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Solution

The fourth proportional to 47,681.66, 71,523.85 and 12,621.32 is: 18,932.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,681.66 : 71,523.85 = 12,621.32 : x
  2. Step 2: Convert to fraction form
    47,681.66/71,523.85 = 12,621.32/x
  3. Step 3: Cross multiply
    47,681.66x = 71,523.85 × 12,621.32
  4. Step 4: Simplify right side
    47,681.66x = 902,725,040.86
  5. Step 5: Solve for x
    x = 902,725,040.86/47,681.66
  6. Step 6: Final answer
    x = 18,932.33

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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.