Home / 21,445.68-32,156.84-6,648.24

Finding the Fourth Proportional to 21,445.68, 32,156.84 and 6,648.24

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Solution

The fourth proportional to 21,445.68, 32,156.84 and 6,648.24 is: 9,968.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,445.68 : 32,156.84 = 6,648.24 : x
  2. Step 2: Convert to fraction form
    21,445.68/32,156.84 = 6,648.24/x
  3. Step 3: Cross multiply
    21,445.68x = 32,156.84 × 6,648.24
  4. Step 4: Simplify right side
    21,445.68x = 213,786,389.96
  5. Step 5: Solve for x
    x = 213,786,389.96/21,445.68
  6. Step 6: Final answer
    x = 9,968.74

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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.