Home / 25,603.05-38,339.78-18,993.45

Finding the Fourth Proportional to 25,603.05, 38,339.78 and 18,993.45

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Solution

The fourth proportional to 25,603.05, 38,339.78 and 18,993.45 is: 28,442.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,603.05 : 38,339.78 = 18,993.45 : x
  2. Step 2: Convert to fraction form
    25,603.05/38,339.78 = 18,993.45/x
  3. Step 3: Cross multiply
    25,603.05x = 38,339.78 × 18,993.45
  4. Step 4: Simplify right side
    25,603.05x = 728,204,599.47
  5. Step 5: Solve for x
    x = 728,204,599.47/25,603.05
  6. Step 6: Final answer
    x = 28,442.10

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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.