Home / 21,324.21-29,417.90-12,366.53

Finding the Fourth Proportional to 21,324.21, 29,417.90 and 12,366.53

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Solution

The fourth proportional to 21,324.21, 29,417.90 and 12,366.53 is: 17,060.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.21 : 29,417.90 = 12,366.53 : x
  2. Step 2: Convert to fraction form
    21,324.21/29,417.90 = 12,366.53/x
  3. Step 3: Cross multiply
    21,324.21x = 29,417.90 × 12,366.53
  4. Step 4: Simplify right side
    21,324.21x = 363,797,133.96
  5. Step 5: Solve for x
    x = 363,797,133.96/21,324.21
  6. Step 6: Final answer
    x = 17,060.29

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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.