Home / 21,554.55-32,337.21-17,128.95

Finding the Fourth Proportional to 21,554.55, 32,337.21 and 17,128.95

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Solution

The fourth proportional to 21,554.55, 32,337.21 and 17,128.95 is: 25,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554.55 : 32,337.21 = 17,128.95 : x
  2. Step 2: Convert to fraction form
    21,554.55/32,337.21 = 17,128.95/x
  3. Step 3: Cross multiply
    21,554.55x = 32,337.21 × 17,128.95
  4. Step 4: Simplify right side
    21,554.55x = 553,902,453.23
  5. Step 5: Solve for x
    x = 553,902,453.23/21,554.55
  6. Step 6: Final answer
    x = 25,697.70

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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.