Home / 21,718.36-32,588.34-8,580.16

Finding the Fourth Proportional to 21,718.36, 32,588.34 and 8,580.16

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Solution

The fourth proportional to 21,718.36, 32,588.34 and 8,580.16 is: 12,874.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,718.36 : 32,588.34 = 8,580.16 : x
  2. Step 2: Convert to fraction form
    21,718.36/32,588.34 = 8,580.16/x
  3. Step 3: Cross multiply
    21,718.36x = 32,588.34 × 8,580.16
  4. Step 4: Simplify right side
    21,718.36x = 279,613,171.33
  5. Step 5: Solve for x
    x = 279,613,171.33/21,718.36
  6. Step 6: Final answer
    x = 12,874.51

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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.