Home / 20,275.07-27,977.98-11,322.04

Finding the Fourth Proportional to 20,275.07, 27,977.98 and 11,322.04

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Solution

The fourth proportional to 20,275.07, 27,977.98 and 11,322.04 is: 15,623.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.07 : 27,977.98 = 11,322.04 : x
  2. Step 2: Convert to fraction form
    20,275.07/27,977.98 = 11,322.04/x
  3. Step 3: Cross multiply
    20,275.07x = 27,977.98 × 11,322.04
  4. Step 4: Simplify right side
    20,275.07x = 316,767,808.68
  5. Step 5: Solve for x
    x = 316,767,808.68/20,275.07
  6. Step 6: Final answer
    x = 15,623.51

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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.