Home / 21,414.12-32,128.80-9,566.79

Finding the Fourth Proportional to 21,414.12, 32,128.80 and 9,566.79

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Solution

The fourth proportional to 21,414.12, 32,128.80 and 9,566.79 is: 14,353.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,414.12 : 32,128.80 = 9,566.79 : x
  2. Step 2: Convert to fraction form
    21,414.12/32,128.80 = 9,566.79/x
  3. Step 3: Cross multiply
    21,414.12x = 32,128.80 × 9,566.79
  4. Step 4: Simplify right side
    21,414.12x = 307,369,482.55
  5. Step 5: Solve for x
    x = 307,369,482.55/21,414.12
  6. Step 6: Final answer
    x = 14,353.59

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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.