Home / 20,031.46-27,643.44-10,956.94

Finding the Fourth Proportional to 20,031.46, 27,643.44 and 10,956.94

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Solution

The fourth proportional to 20,031.46, 27,643.44 and 10,956.94 is: 15,120.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.46 : 27,643.44 = 10,956.94 : x
  2. Step 2: Convert to fraction form
    20,031.46/27,643.44 = 10,956.94/x
  3. Step 3: Cross multiply
    20,031.46x = 27,643.44 × 10,956.94
  4. Step 4: Simplify right side
    20,031.46x = 302,887,513.47
  5. Step 5: Solve for x
    x = 302,887,513.47/20,031.46
  6. Step 6: Final answer
    x = 15,120.59

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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.