Home / 21,855.64-32,775.88-13,522.92

Finding the Fourth Proportional to 21,855.64, 32,775.88 and 13,522.92

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Solution

The fourth proportional to 21,855.64, 32,775.88 and 13,522.92 is: 20,279.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,855.64 : 32,775.88 = 13,522.92 : x
  2. Step 2: Convert to fraction form
    21,855.64/32,775.88 = 13,522.92/x
  3. Step 3: Cross multiply
    21,855.64x = 32,775.88 × 13,522.92
  4. Step 4: Simplify right side
    21,855.64x = 443,225,603.17
  5. Step 5: Solve for x
    x = 443,225,603.17/21,855.64
  6. Step 6: Final answer
    x = 20,279.69

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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.