Home / 19,937.72-27,514.56-10,985.22

Finding the Fourth Proportional to 19,937.72, 27,514.56 and 10,985.22

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Solution

The fourth proportional to 19,937.72, 27,514.56 and 10,985.22 is: 15,159.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.72 : 27,514.56 = 10,985.22 : x
  2. Step 2: Convert to fraction form
    19,937.72/27,514.56 = 10,985.22/x
  3. Step 3: Cross multiply
    19,937.72x = 27,514.56 × 10,985.22
  4. Step 4: Simplify right side
    19,937.72x = 302,253,474.21
  5. Step 5: Solve for x
    x = 302,253,474.21/19,937.72
  6. Step 6: Final answer
    x = 15,159.88

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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.