Home / 21,425.16-32,125.41-8,275.80

Finding the Fourth Proportional to 21,425.16, 32,125.41 and 8,275.80

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Solution

The fourth proportional to 21,425.16, 32,125.41 and 8,275.80 is: 12,408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.16 : 32,125.41 = 8,275.80 : x
  2. Step 2: Convert to fraction form
    21,425.16/32,125.41 = 8,275.80/x
  3. Step 3: Cross multiply
    21,425.16x = 32,125.41 × 8,275.80
  4. Step 4: Simplify right side
    21,425.16x = 265,863,468.08
  5. Step 5: Solve for x
    x = 265,863,468.08/21,425.16
  6. Step 6: Final answer
    x = 12,408.94

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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.