Home / 20,070.33-27,697.07-11,117.64

Finding the Fourth Proportional to 20,070.33, 27,697.07 and 11,117.64

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Solution

The fourth proportional to 20,070.33, 27,697.07 and 11,117.64 is: 15,342.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.33 : 27,697.07 = 11,117.64 : x
  2. Step 2: Convert to fraction form
    20,070.33/27,697.07 = 11,117.64/x
  3. Step 3: Cross multiply
    20,070.33x = 27,697.07 × 11,117.64
  4. Step 4: Simplify right side
    20,070.33x = 307,926,053.31
  5. Step 5: Solve for x
    x = 307,926,053.31/20,070.33
  6. Step 6: Final answer
    x = 15,342.36

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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.