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Finding the Fourth Proportional to 19,934.88, 27,510 and 10,982.40

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Solution

The fourth proportional to 19,934.88, 27,510 and 10,982.40 is: 15,155.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,934.88 : 27,510 = 10,982.40 : x
  2. Step 2: Convert to fraction form
    19,934.88/27,510 = 10,982.40/x
  3. Step 3: Cross multiply
    19,934.88x = 27,510 × 10,982.40
  4. Step 4: Simplify right side
    19,934.88x = 302,125,824
  5. Step 5: Solve for x
    x = 302,125,824/19,934.88
  6. Step 6: Final answer
    x = 15,155.64

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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.