Home / 25,109.93-34,652.12-13,780.48

Finding the Fourth Proportional to 25,109.93, 34,652.12 and 13,780.48

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Solution

The fourth proportional to 25,109.93, 34,652.12 and 13,780.48 is: 19,017.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,109.93 : 34,652.12 = 13,780.48 : x
  2. Step 2: Convert to fraction form
    25,109.93/34,652.12 = 13,780.48/x
  3. Step 3: Cross multiply
    25,109.93x = 34,652.12 × 13,780.48
  4. Step 4: Simplify right side
    25,109.93x = 477,522,754.32
  5. Step 5: Solve for x
    x = 477,522,754.32/25,109.93
  6. Step 6: Final answer
    x = 19,017.29

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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.