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Finding the Fourth Proportional to 19,937.82, 27,514.04 and 10,985.10

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Solution

The fourth proportional to 19,937.82, 27,514.04 and 10,985.10 is: 15,159.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.82 : 27,514.04 = 10,985.10 : x
  2. Step 2: Convert to fraction form
    19,937.82/27,514.04 = 10,985.10/x
  3. Step 3: Cross multiply
    19,937.82x = 27,514.04 × 10,985.10
  4. Step 4: Simplify right side
    19,937.82x = 302,244,480.80
  5. Step 5: Solve for x
    x = 302,244,480.80/19,937.82
  6. Step 6: Final answer
    x = 15,159.35

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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.