Home / 19,971.17-27,540.51-15,493.28

Finding the Fourth Proportional to 19,971.17, 27,540.51 and 15,493.28

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Solution

The fourth proportional to 19,971.17, 27,540.51 and 15,493.28 is: 21,365.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.17 : 27,540.51 = 15,493.28 : x
  2. Step 2: Convert to fraction form
    19,971.17/27,540.51 = 15,493.28/x
  3. Step 3: Cross multiply
    19,971.17x = 27,540.51 × 15,493.28
  4. Step 4: Simplify right side
    19,971.17x = 426,692,695.07
  5. Step 5: Solve for x
    x = 426,692,695.07/19,971.17
  6. Step 6: Final answer
    x = 21,365.44

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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.