Home / 25,519.12-35,214.68-14,187.74

Finding the Fourth Proportional to 25,519.12, 35,214.68 and 14,187.74

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Solution

The fourth proportional to 25,519.12, 35,214.68 and 14,187.74 is: 19,578.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,519.12 : 35,214.68 = 14,187.74 : x
  2. Step 2: Convert to fraction form
    25,519.12/35,214.68 = 14,187.74/x
  3. Step 3: Cross multiply
    25,519.12x = 35,214.68 × 14,187.74
  4. Step 4: Simplify right side
    25,519.12x = 499,616,724.02
  5. Step 5: Solve for x
    x = 499,616,724.02/25,519.12
  6. Step 6: Final answer
    x = 19,578.13

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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.