Home / 21,627.09-32,425.65-8,480.79

Finding the Fourth Proportional to 21,627.09, 32,425.65 and 8,480.79

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Solution

The fourth proportional to 21,627.09, 32,425.65 and 8,480.79 is: 12,715.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,627.09 : 32,425.65 = 8,480.79 : x
  2. Step 2: Convert to fraction form
    21,627.09/32,425.65 = 8,480.79/x
  3. Step 3: Cross multiply
    21,627.09x = 32,425.65 × 8,480.79
  4. Step 4: Simplify right side
    21,627.09x = 274,995,128.26
  5. Step 5: Solve for x
    x = 274,995,128.26/21,627.09
  6. Step 6: Final answer
    x = 12,715.31

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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.