Home / 20,653.03-30,979.65-5,070.66

Finding the Fourth Proportional to 20,653.03, 30,979.65 and 5,070.66

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Solution

The fourth proportional to 20,653.03, 30,979.65 and 5,070.66 is: 7,606.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653.03 : 30,979.65 = 5,070.66 : x
  2. Step 2: Convert to fraction form
    20,653.03/30,979.65 = 5,070.66/x
  3. Step 3: Cross multiply
    20,653.03x = 30,979.65 × 5,070.66
  4. Step 4: Simplify right side
    20,653.03x = 157,087,272.07
  5. Step 5: Solve for x
    x = 157,087,272.07/20,653.03
  6. Step 6: Final answer
    x = 7,606.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.