Home / 21,689.20-32,534.36-6,106.72

Finding the Fourth Proportional to 21,689.20, 32,534.36 and 6,106.72

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Solution

The fourth proportional to 21,689.20, 32,534.36 and 6,106.72 is: 9,160.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,689.20 : 32,534.36 = 6,106.72 : x
  2. Step 2: Convert to fraction form
    21,689.20/32,534.36 = 6,106.72/x
  3. Step 3: Cross multiply
    21,689.20x = 32,534.36 × 6,106.72
  4. Step 4: Simplify right side
    21,689.20x = 198,678,226.90
  5. Step 5: Solve for x
    x = 198,678,226.90/21,689.20
  6. Step 6: Final answer
    x = 9,160.24

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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.