Home / 23,752.40-32,780.16-13,143.04

Finding the Fourth Proportional to 23,752.40, 32,780.16 and 13,143.04

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Solution

The fourth proportional to 23,752.40, 32,780.16 and 13,143.04 is: 18,138.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,752.40 : 32,780.16 = 13,143.04 : x
  2. Step 2: Convert to fraction form
    23,752.40/32,780.16 = 13,143.04/x
  3. Step 3: Cross multiply
    23,752.40x = 32,780.16 × 13,143.04
  4. Step 4: Simplify right side
    23,752.40x = 430,830,954.09
  5. Step 5: Solve for x
    x = 430,830,954.09/23,752.40
  6. Step 6: Final answer
    x = 18,138.42

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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.