Home / 25,209.12-34,788.66-13,878.24

Finding the Fourth Proportional to 25,209.12, 34,788.66 and 13,878.24

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Solution

The fourth proportional to 25,209.12, 34,788.66 and 13,878.24 is: 19,152.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,209.12 : 34,788.66 = 13,878.24 : x
  2. Step 2: Convert to fraction form
    25,209.12/34,788.66 = 13,878.24/x
  3. Step 3: Cross multiply
    25,209.12x = 34,788.66 × 13,878.24
  4. Step 4: Simplify right side
    25,209.12x = 482,805,372.76
  5. Step 5: Solve for x
    x = 482,805,372.76/25,209.12
  6. Step 6: Final answer
    x = 19,152.01

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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.