Home / 25,600.62-35,299.59-20,807.45

Finding the Fourth Proportional to 25,600.62, 35,299.59 and 20,807.45

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Solution

The fourth proportional to 25,600.62, 35,299.59 and 20,807.45 is: 28,690.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,600.62 : 35,299.59 = 20,807.45 : x
  2. Step 2: Convert to fraction form
    25,600.62/35,299.59 = 20,807.45/x
  3. Step 3: Cross multiply
    25,600.62x = 35,299.59 × 20,807.45
  4. Step 4: Simplify right side
    25,600.62x = 734,494,277.45
  5. Step 5: Solve for x
    x = 734,494,277.45/25,600.62
  6. Step 6: Final answer
    x = 28,690.49

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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.