Home / 30,857.99-42,552.19-26,396.51

Finding the Fourth Proportional to 30,857.99, 42,552.19 and 26,396.51

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Solution

The fourth proportional to 30,857.99, 42,552.19 and 26,396.51 is: 36,399.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,857.99 : 42,552.19 = 26,396.51 : x
  2. Step 2: Convert to fraction form
    30,857.99/42,552.19 = 26,396.51/x
  3. Step 3: Cross multiply
    30,857.99x = 42,552.19 × 26,396.51
  4. Step 4: Simplify right side
    30,857.99x = 1,123,229,308.86
  5. Step 5: Solve for x
    x = 1,123,229,308.86/30,857.99
  6. Step 6: Final answer
    x = 36,399.95

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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.