Home / 17,979.41-24,811.91-10,020.78

Finding the Fourth Proportional to 17,979.41, 24,811.91 and 10,020.78

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Solution

The fourth proportional to 17,979.41, 24,811.91 and 10,020.78 is: 13,828.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,979.41 : 24,811.91 = 10,020.78 : x
  2. Step 2: Convert to fraction form
    17,979.41/24,811.91 = 10,020.78/x
  3. Step 3: Cross multiply
    17,979.41x = 24,811.91 × 10,020.78
  4. Step 4: Simplify right side
    17,979.41x = 248,634,707.15
  5. Step 5: Solve for x
    x = 248,634,707.15/17,979.41
  6. Step 6: Final answer
    x = 13,828.86

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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.