Home / 21,445.96-29,601.22-12,948.24

Finding the Fourth Proportional to 21,445.96, 29,601.22 and 12,948.24

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Solution

The fourth proportional to 21,445.96, 29,601.22 and 12,948.24 is: 17,872.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,445.96 : 29,601.22 = 12,948.24 : x
  2. Step 2: Convert to fraction form
    21,445.96/29,601.22 = 12,948.24/x
  3. Step 3: Cross multiply
    21,445.96x = 29,601.22 × 12,948.24
  4. Step 4: Simplify right side
    21,445.96x = 383,283,700.85
  5. Step 5: Solve for x
    x = 383,283,700.85/21,445.96
  6. Step 6: Final answer
    x = 17,872.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.