Home / 21,232.72-31,830.18-10,689.04

Finding the Fourth Proportional to 21,232.72, 31,830.18 and 10,689.04

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Solution

The fourth proportional to 21,232.72, 31,830.18 and 10,689.04 is: 16,024.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.72 : 31,830.18 = 10,689.04 : x
  2. Step 2: Convert to fraction form
    21,232.72/31,830.18 = 10,689.04/x
  3. Step 3: Cross multiply
    21,232.72x = 31,830.18 × 10,689.04
  4. Step 4: Simplify right side
    21,232.72x = 340,234,067.23
  5. Step 5: Solve for x
    x = 340,234,067.23/21,232.72
  6. Step 6: Final answer
    x = 16,024.05

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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.