Home / 19,929.55-27,502.97-10,977.09

Finding the Fourth Proportional to 19,929.55, 27,502.97 and 10,977.09

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Solution

The fourth proportional to 19,929.55, 27,502.97 and 10,977.09 is: 15,148.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.55 : 27,502.97 = 10,977.09 : x
  2. Step 2: Convert to fraction form
    19,929.55/27,502.97 = 10,977.09/x
  3. Step 3: Cross multiply
    19,929.55x = 27,502.97 × 10,977.09
  4. Step 4: Simplify right side
    19,929.55x = 301,902,384.56
  5. Step 5: Solve for x
    x = 301,902,384.56/19,929.55
  6. Step 6: Final answer
    x = 15,148.48

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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.