Home / 27,700.70-38,228.19-15,765.26

Finding the Fourth Proportional to 27,700.70, 38,228.19 and 15,765.26

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Solution

The fourth proportional to 27,700.70, 38,228.19 and 15,765.26 is: 21,756.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,700.70 : 38,228.19 = 15,765.26 : x
  2. Step 2: Convert to fraction form
    27,700.70/38,228.19 = 15,765.26/x
  3. Step 3: Cross multiply
    27,700.70x = 38,228.19 × 15,765.26
  4. Step 4: Simplify right side
    27,700.70x = 602,677,354.68
  5. Step 5: Solve for x
    x = 602,677,354.68/27,700.70
  6. Step 6: Final answer
    x = 21,756.76

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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.