Home / 30,362.16-41,878.62-20,151.30

Finding the Fourth Proportional to 30,362.16, 41,878.62 and 20,151.30

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Solution

The fourth proportional to 30,362.16, 41,878.62 and 20,151.30 is: 27,794.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,362.16 : 41,878.62 = 20,151.30 : x
  2. Step 2: Convert to fraction form
    30,362.16/41,878.62 = 20,151.30/x
  3. Step 3: Cross multiply
    30,362.16x = 41,878.62 × 20,151.30
  4. Step 4: Simplify right side
    30,362.16x = 843,908,635.21
  5. Step 5: Solve for x
    x = 843,908,635.21/30,362.16
  6. Step 6: Final answer
    x = 27,794.75

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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.