Home / 19,822.76-27,355.78-10,869.72

Finding the Fourth Proportional to 19,822.76, 27,355.78 and 10,869.72

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Solution

The fourth proportional to 19,822.76, 27,355.78 and 10,869.72 is: 15,000.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,822.76 : 27,355.78 = 10,869.72 : x
  2. Step 2: Convert to fraction form
    19,822.76/27,355.78 = 10,869.72/x
  3. Step 3: Cross multiply
    19,822.76x = 27,355.78 × 10,869.72
  4. Step 4: Simplify right side
    19,822.76x = 297,349,614.63
  5. Step 5: Solve for x
    x = 297,349,614.63/19,822.76
  6. Step 6: Final answer
    x = 15,000.42

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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.