Home / 19,929.40-27,502.22-10,977.73

Finding the Fourth Proportional to 19,929.40, 27,502.22 and 10,977.73

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Solution

The fourth proportional to 19,929.40, 27,502.22 and 10,977.73 is: 15,149.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.40 : 27,502.22 = 10,977.73 : x
  2. Step 2: Convert to fraction form
    19,929.40/27,502.22 = 10,977.73/x
  3. Step 3: Cross multiply
    19,929.40x = 27,502.22 × 10,977.73
  4. Step 4: Simplify right side
    19,929.40x = 301,911,904.25
  5. Step 5: Solve for x
    x = 301,911,904.25/19,929.40
  6. Step 6: Final answer
    x = 15,149.07

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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.