Home / 19,931.00-27,504.45-10,979.34

Finding the Fourth Proportional to 19,931.00, 27,504.45 and 10,979.34

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Solution

The fourth proportional to 19,931.00, 27,504.45 and 10,979.34 is: 15,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.00 : 27,504.45 = 10,979.34 : x
  2. Step 2: Convert to fraction form
    19,931.00/27,504.45 = 10,979.34/x
  3. Step 3: Cross multiply
    19,931.00x = 27,504.45 × 10,979.34
  4. Step 4: Simplify right side
    19,931.00x = 301,980,515.64
  5. Step 5: Solve for x
    x = 301,980,515.64/19,931.00
  6. Step 6: Final answer
    x = 15,151.30

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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.