Home / 25,599.12-35,297.51-20,805.95

Finding the Fourth Proportional to 25,599.12, 35,297.51 and 20,805.95

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Solution

The fourth proportional to 25,599.12, 35,297.51 and 20,805.95 is: 28,688.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,599.12 : 35,297.51 = 20,805.95 : x
  2. Step 2: Convert to fraction form
    25,599.12/35,297.51 = 20,805.95/x
  3. Step 3: Cross multiply
    25,599.12x = 35,297.51 × 20,805.95
  4. Step 4: Simplify right side
    25,599.12x = 734,398,103.71
  5. Step 5: Solve for x
    x = 734,398,103.71/25,599.12
  6. Step 6: Final answer
    x = 28,688.41

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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.