Home / 27,763.68-38,313.36-15,189.60

Finding the Fourth Proportional to 27,763.68, 38,313.36 and 15,189.60

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Solution

The fourth proportional to 27,763.68, 38,313.36 and 15,189.60 is: 20,961.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,763.68 : 38,313.36 = 15,189.60 : x
  2. Step 2: Convert to fraction form
    27,763.68/38,313.36 = 15,189.60/x
  3. Step 3: Cross multiply
    27,763.68x = 38,313.36 × 15,189.60
  4. Step 4: Simplify right side
    27,763.68x = 581,964,613.06
  5. Step 5: Solve for x
    x = 581,964,613.06/27,763.68
  6. Step 6: Final answer
    x = 20,961.36

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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.