Home / 25,251.12-34,846.66-13,920.36

Finding the Fourth Proportional to 25,251.12, 34,846.66 and 13,920.36

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Solution

The fourth proportional to 25,251.12, 34,846.66 and 13,920.36 is: 19,210.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,251.12 : 34,846.66 = 13,920.36 : x
  2. Step 2: Convert to fraction form
    25,251.12/34,846.66 = 13,920.36/x
  3. Step 3: Cross multiply
    25,251.12x = 34,846.66 × 13,920.36
  4. Step 4: Simplify right side
    25,251.12x = 485,077,808.16
  5. Step 5: Solve for x
    x = 485,077,808.16/25,251.12
  6. Step 6: Final answer
    x = 19,210.15

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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.