Home / 25,161.12-34,690.32-15,726.24

Finding the Fourth Proportional to 25,161.12, 34,690.32 and 15,726.24

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Solution

The fourth proportional to 25,161.12, 34,690.32 and 15,726.24 is: 21,682.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,161.12 : 34,690.32 = 15,726.24 : x
  2. Step 2: Convert to fraction form
    25,161.12/34,690.32 = 15,726.24/x
  3. Step 3: Cross multiply
    25,161.12x = 34,690.32 × 15,726.24
  4. Step 4: Simplify right side
    25,161.12x = 545,548,298.00
  5. Step 5: Solve for x
    x = 545,548,298.00/25,161.12
  6. Step 6: Final answer
    x = 21,682.19

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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.