Home / 20,031.95-27,643.62-11,079.51

Finding the Fourth Proportional to 20,031.95, 27,643.62 and 11,079.51

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Solution

The fourth proportional to 20,031.95, 27,643.62 and 11,079.51 is: 15,289.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.95 : 27,643.62 = 11,079.51 : x
  2. Step 2: Convert to fraction form
    20,031.95/27,643.62 = 11,079.51/x
  3. Step 3: Cross multiply
    20,031.95x = 27,643.62 × 11,079.51
  4. Step 4: Simplify right side
    20,031.95x = 306,277,764.23
  5. Step 5: Solve for x
    x = 306,277,764.23/20,031.95
  6. Step 6: Final answer
    x = 15,289.47

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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.