Home / 25,740.64-38,619.56-10,149.76

Finding the Fourth Proportional to 25,740.64, 38,619.56 and 10,149.76

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Solution

The fourth proportional to 25,740.64, 38,619.56 and 10,149.76 is: 15,228.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,740.64 : 38,619.56 = 10,149.76 : x
  2. Step 2: Convert to fraction form
    25,740.64/38,619.56 = 10,149.76/x
  3. Step 3: Cross multiply
    25,740.64x = 38,619.56 × 10,149.76
  4. Step 4: Simplify right side
    25,740.64x = 391,979,265.31
  5. Step 5: Solve for x
    x = 391,979,265.31/25,740.64
  6. Step 6: Final answer
    x = 15,228.03

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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.