Home / 25,820.39-38,732.44-10,812.40

Finding the Fourth Proportional to 25,820.39, 38,732.44 and 10,812.40

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Solution

The fourth proportional to 25,820.39, 38,732.44 and 10,812.40 is: 16,219.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,820.39 : 38,732.44 = 10,812.40 : x
  2. Step 2: Convert to fraction form
    25,820.39/38,732.44 = 10,812.40/x
  3. Step 3: Cross multiply
    25,820.39x = 38,732.44 × 10,812.40
  4. Step 4: Simplify right side
    25,820.39x = 418,790,634.26
  5. Step 5: Solve for x
    x = 418,790,634.26/25,820.39
  6. Step 6: Final answer
    x = 16,219.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.