Home / 20,288.06-27,995.38-11,335.94

Finding the Fourth Proportional to 20,288.06, 27,995.38 and 11,335.94

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Solution

The fourth proportional to 20,288.06, 27,995.38 and 11,335.94 is: 15,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.06 : 27,995.38 = 11,335.94 : x
  2. Step 2: Convert to fraction form
    20,288.06/27,995.38 = 11,335.94/x
  3. Step 3: Cross multiply
    20,288.06x = 27,995.38 × 11,335.94
  4. Step 4: Simplify right side
    20,288.06x = 317,353,779.64
  5. Step 5: Solve for x
    x = 317,353,779.64/20,288.06
  6. Step 6: Final answer
    x = 15,642.40

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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.