Home / 25,251.60-34,845.80-13,921.08

Finding the Fourth Proportional to 25,251.60, 34,845.80 and 13,921.08

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Solution

The fourth proportional to 25,251.60, 34,845.80 and 13,921.08 is: 19,210.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,251.60 : 34,845.80 = 13,921.08 : x
  2. Step 2: Convert to fraction form
    25,251.60/34,845.80 = 13,921.08/x
  3. Step 3: Cross multiply
    25,251.60x = 34,845.80 × 13,921.08
  4. Step 4: Simplify right side
    25,251.60x = 485,091,169.46
  5. Step 5: Solve for x
    x = 485,091,169.46/25,251.60
  6. Step 6: Final answer
    x = 19,210.31

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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.