Home / 25,576.87-35,297.85-15,505.74

Finding the Fourth Proportional to 25,576.87, 35,297.85 and 15,505.74

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Solution

The fourth proportional to 25,576.87, 35,297.85 and 15,505.74 is: 21,398.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,576.87 : 35,297.85 = 15,505.74 : x
  2. Step 2: Convert to fraction form
    25,576.87/35,297.85 = 15,505.74/x
  3. Step 3: Cross multiply
    25,576.87x = 35,297.85 × 15,505.74
  4. Step 4: Simplify right side
    25,576.87x = 547,319,284.66
  5. Step 5: Solve for x
    x = 547,319,284.66/25,576.87
  6. Step 6: Final answer
    x = 21,398.99

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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.