Home / 21,489.10-32,242.15-8,345.23

Finding the Fourth Proportional to 21,489.10, 32,242.15 and 8,345.23

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Solution

The fourth proportional to 21,489.10, 32,242.15 and 8,345.23 is: 12,521.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.10 : 32,242.15 = 8,345.23 : x
  2. Step 2: Convert to fraction form
    21,489.10/32,242.15 = 8,345.23/x
  3. Step 3: Cross multiply
    21,489.10x = 32,242.15 × 8,345.23
  4. Step 4: Simplify right side
    21,489.10x = 269,068,087.27
  5. Step 5: Solve for x
    x = 269,068,087.27/21,489.10
  6. Step 6: Final answer
    x = 12,521.14

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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.