Home / 19,785.12-27,316.16-17,656.96

Finding the Fourth Proportional to 19,785.12, 27,316.16 and 17,656.96

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Solution

The fourth proportional to 19,785.12, 27,316.16 and 17,656.96 is: 24,377.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.12 : 27,316.16 = 17,656.96 : x
  2. Step 2: Convert to fraction form
    19,785.12/27,316.16 = 17,656.96/x
  3. Step 3: Cross multiply
    19,785.12x = 27,316.16 × 17,656.96
  4. Step 4: Simplify right side
    19,785.12x = 482,320,344.47
  5. Step 5: Solve for x
    x = 482,320,344.47/19,785.12
  6. Step 6: Final answer
    x = 24,377.93

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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.