Home / 25,275.45-34,878.82-15,201.95

Finding the Fourth Proportional to 25,275.45, 34,878.82 and 15,201.95

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Solution

The fourth proportional to 25,275.45, 34,878.82 and 15,201.95 is: 20,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,275.45 : 34,878.82 = 15,201.95 : x
  2. Step 2: Convert to fraction form
    25,275.45/34,878.82 = 15,201.95/x
  3. Step 3: Cross multiply
    25,275.45x = 34,878.82 × 15,201.95
  4. Step 4: Simplify right side
    25,275.45x = 530,226,077.70
  5. Step 5: Solve for x
    x = 530,226,077.70/25,275.45
  6. Step 6: Final answer
    x = 20,977.91

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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.