Home / 21,815.33-32,575.21-17,322.57

Finding the Fourth Proportional to 21,815.33, 32,575.21 and 17,322.57

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Solution

The fourth proportional to 21,815.33, 32,575.21 and 17,322.57 is: 25,866.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,815.33 : 32,575.21 = 17,322.57 : x
  2. Step 2: Convert to fraction form
    21,815.33/32,575.21 = 17,322.57/x
  3. Step 3: Cross multiply
    21,815.33x = 32,575.21 × 17,322.57
  4. Step 4: Simplify right side
    21,815.33x = 564,286,312.18
  5. Step 5: Solve for x
    x = 564,286,312.18/21,815.33
  6. Step 6: Final answer
    x = 25,866.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.