Home / 19,828.20-27,363.12-10,875.90

Finding the Fourth Proportional to 19,828.20, 27,363.12 and 10,875.90

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Solution

The fourth proportional to 19,828.20, 27,363.12 and 10,875.90 is: 15,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,828.20 : 27,363.12 = 10,875.90 : x
  2. Step 2: Convert to fraction form
    19,828.20/27,363.12 = 10,875.90/x
  3. Step 3: Cross multiply
    19,828.20x = 27,363.12 × 10,875.90
  4. Step 4: Simplify right side
    19,828.20x = 297,598,556.81
  5. Step 5: Solve for x
    x = 297,598,556.81/19,828.20
  6. Step 6: Final answer
    x = 15,008.85

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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.