Home / 21,979.56-32,975.10-9,670.44

Finding the Fourth Proportional to 21,979.56, 32,975.10 and 9,670.44

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Solution

The fourth proportional to 21,979.56, 32,975.10 and 9,670.44 is: 14,508.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,979.56 : 32,975.10 = 9,670.44 : x
  2. Step 2: Convert to fraction form
    21,979.56/32,975.10 = 9,670.44/x
  3. Step 3: Cross multiply
    21,979.56x = 32,975.10 × 9,670.44
  4. Step 4: Simplify right side
    21,979.56x = 318,883,726.04
  5. Step 5: Solve for x
    x = 318,883,726.04/21,979.56
  6. Step 6: Final answer
    x = 14,508.19

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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.