Home / 19,934.36-27,509.62-10,981.90

Finding the Fourth Proportional to 19,934.36, 27,509.62 and 10,981.90

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Solution

The fourth proportional to 19,934.36, 27,509.62 and 10,981.90 is: 15,155.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,934.36 : 27,509.62 = 10,981.90 : x
  2. Step 2: Convert to fraction form
    19,934.36/27,509.62 = 10,981.90/x
  3. Step 3: Cross multiply
    19,934.36x = 27,509.62 × 10,981.90
  4. Step 4: Simplify right side
    19,934.36x = 302,107,895.88
  5. Step 5: Solve for x
    x = 302,107,895.88/19,934.36
  6. Step 6: Final answer
    x = 15,155.13

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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.