Home / 19,621.50-27,071.69-11,122.26

Finding the Fourth Proportional to 19,621.50, 27,071.69 and 11,122.26

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Solution

The fourth proportional to 19,621.50, 27,071.69 and 11,122.26 is: 15,345.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.50 : 27,071.69 = 11,122.26 : x
  2. Step 2: Convert to fraction form
    19,621.50/27,071.69 = 11,122.26/x
  3. Step 3: Cross multiply
    19,621.50x = 27,071.69 × 11,122.26
  4. Step 4: Simplify right side
    19,621.50x = 301,098,319.21
  5. Step 5: Solve for x
    x = 301,098,319.21/19,621.50
  6. Step 6: Final answer
    x = 15,345.33

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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.