Home / 47,387.21-71,080.91-12,326.81

Finding the Fourth Proportional to 47,387.21, 71,080.91 and 12,326.81

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Solution

The fourth proportional to 47,387.21, 71,080.91 and 12,326.81 is: 18,490.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,387.21 : 71,080.91 = 12,326.81 : x
  2. Step 2: Convert to fraction form
    47,387.21/71,080.91 = 12,326.81/x
  3. Step 3: Cross multiply
    47,387.21x = 71,080.91 × 12,326.81
  4. Step 4: Simplify right side
    47,387.21x = 876,200,810.56
  5. Step 5: Solve for x
    x = 876,200,810.56/47,387.21
  6. Step 6: Final answer
    x = 18,490.24

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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.