Home / 19,720.52-27,214.60-11,767.36

Finding the Fourth Proportional to 19,720.52, 27,214.60 and 11,767.36

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Solution

The fourth proportional to 19,720.52, 27,214.60 and 11,767.36 is: 16,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.52 : 27,214.60 = 11,767.36 : x
  2. Step 2: Convert to fraction form
    19,720.52/27,214.60 = 11,767.36/x
  3. Step 3: Cross multiply
    19,720.52x = 27,214.60 × 11,767.36
  4. Step 4: Simplify right side
    19,720.52x = 320,243,995.46
  5. Step 5: Solve for x
    x = 320,243,995.46/19,720.52
  6. Step 6: Final answer
    x = 16,239.13

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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.