Home / 19,879.30-27,432.97-10,804.45

Finding the Fourth Proportional to 19,879.30, 27,432.97 and 10,804.45

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Solution

The fourth proportional to 19,879.30, 27,432.97 and 10,804.45 is: 14,909.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.30 : 27,432.97 = 10,804.45 : x
  2. Step 2: Convert to fraction form
    19,879.30/27,432.97 = 10,804.45/x
  3. Step 3: Cross multiply
    19,879.30x = 27,432.97 × 10,804.45
  4. Step 4: Simplify right side
    19,879.30x = 296,398,097.64
  5. Step 5: Solve for x
    x = 296,398,097.64/19,879.30
  6. Step 6: Final answer
    x = 14,909.89

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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.