Home / 19,879.48-27,432.30-10,926.76

Finding the Fourth Proportional to 19,879.48, 27,432.30 and 10,926.76

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Solution

The fourth proportional to 19,879.48, 27,432.30 and 10,926.76 is: 15,078.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.48 : 27,432.30 = 10,926.76 : x
  2. Step 2: Convert to fraction form
    19,879.48/27,432.30 = 10,926.76/x
  3. Step 3: Cross multiply
    19,879.48x = 27,432.30 × 10,926.76
  4. Step 4: Simplify right side
    19,879.48x = 299,746,158.35
  5. Step 5: Solve for x
    x = 299,746,158.35/19,879.48
  6. Step 6: Final answer
    x = 15,078.17

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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.