Home / 25,115.96-34,659.54-13,785.08

Finding the Fourth Proportional to 25,115.96, 34,659.54 and 13,785.08

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Solution

The fourth proportional to 25,115.96, 34,659.54 and 13,785.08 is: 19,023.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,115.96 : 34,659.54 = 13,785.08 : x
  2. Step 2: Convert to fraction form
    25,115.96/34,659.54 = 13,785.08/x
  3. Step 3: Cross multiply
    25,115.96x = 34,659.54 × 13,785.08
  4. Step 4: Simplify right side
    25,115.96x = 477,784,358.37
  5. Step 5: Solve for x
    x = 477,784,358.37/25,115.96
  6. Step 6: Final answer
    x = 19,023.14

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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.