Home / 21,723.16-32,587.32-7,680.30

Finding the Fourth Proportional to 21,723.16, 32,587.32 and 7,680.30

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Solution

The fourth proportional to 21,723.16, 32,587.32 and 7,680.30 is: 11,521.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,723.16 : 32,587.32 = 7,680.30 : x
  2. Step 2: Convert to fraction form
    21,723.16/32,587.32 = 7,680.30/x
  3. Step 3: Cross multiply
    21,723.16x = 32,587.32 × 7,680.30
  4. Step 4: Simplify right side
    21,723.16x = 250,280,393.80
  5. Step 5: Solve for x
    x = 250,280,393.80/21,723.16
  6. Step 6: Final answer
    x = 11,521.36

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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.