Home / 21,440.85-29,588.31-12,366.18

Finding the Fourth Proportional to 21,440.85, 29,588.31 and 12,366.18

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Solution

The fourth proportional to 21,440.85, 29,588.31 and 12,366.18 is: 17,065.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440.85 : 29,588.31 = 12,366.18 : x
  2. Step 2: Convert to fraction form
    21,440.85/29,588.31 = 12,366.18/x
  3. Step 3: Cross multiply
    21,440.85x = 29,588.31 × 12,366.18
  4. Step 4: Simplify right side
    21,440.85x = 365,894,367.36
  5. Step 5: Solve for x
    x = 365,894,367.36/21,440.85
  6. Step 6: Final answer
    x = 17,065.29

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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.