Home / 25,690.14-35,451.81-15,080.76

Finding the Fourth Proportional to 25,690.14, 35,451.81 and 15,080.76

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Solution

The fourth proportional to 25,690.14, 35,451.81 and 15,080.76 is: 20,811.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,690.14 : 35,451.81 = 15,080.76 : x
  2. Step 2: Convert to fraction form
    25,690.14/35,451.81 = 15,080.76/x
  3. Step 3: Cross multiply
    25,690.14x = 35,451.81 × 15,080.76
  4. Step 4: Simplify right side
    25,690.14x = 534,640,238.18
  5. Step 5: Solve for x
    x = 534,640,238.18/25,690.14
  6. Step 6: Final answer
    x = 20,811.11

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Double scale
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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.