Home / 21,439.58-32,158.10-6,446.36

Finding the Fourth Proportional to 21,439.58, 32,158.10 and 6,446.36

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Solution

The fourth proportional to 21,439.58, 32,158.10 and 6,446.36 is: 9,669.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.58 : 32,158.10 = 6,446.36 : x
  2. Step 2: Convert to fraction form
    21,439.58/32,158.10 = 6,446.36/x
  3. Step 3: Cross multiply
    21,439.58x = 32,158.10 × 6,446.36
  4. Step 4: Simplify right side
    21,439.58x = 207,302,689.52
  5. Step 5: Solve for x
    x = 207,302,689.52/21,439.58
  6. Step 6: Final answer
    x = 9,669.16

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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.