Home / 27,899.28-38,500.65-15,323.22

Finding the Fourth Proportional to 27,899.28, 38,500.65 and 15,323.22

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Solution

The fourth proportional to 27,899.28, 38,500.65 and 15,323.22 is: 21,145.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,899.28 : 38,500.65 = 15,323.22 : x
  2. Step 2: Convert to fraction form
    27,899.28/38,500.65 = 15,323.22/x
  3. Step 3: Cross multiply
    27,899.28x = 38,500.65 × 15,323.22
  4. Step 4: Simplify right side
    27,899.28x = 589,953,930.09
  5. Step 5: Solve for x
    x = 589,953,930.09/27,899.28
  6. Step 6: Final answer
    x = 21,145.85

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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.