Home / 20,031.17-27,643.01-10,956.60

Finding the Fourth Proportional to 20,031.17, 27,643.01 and 10,956.60

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Solution

The fourth proportional to 20,031.17, 27,643.01 and 10,956.60 is: 15,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.17 : 27,643.01 = 10,956.60 : x
  2. Step 2: Convert to fraction form
    20,031.17/27,643.01 = 10,956.60/x
  3. Step 3: Cross multiply
    20,031.17x = 27,643.01 × 10,956.60
  4. Step 4: Simplify right side
    20,031.17x = 302,873,348.58
  5. Step 5: Solve for x
    x = 302,873,348.58/20,031.17
  6. Step 6: Final answer
    x = 15,120.11

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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.