Home / 27,708.58-38,228.36-15,768.93

Finding the Fourth Proportional to 27,708.58, 38,228.36 and 15,768.93

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Solution

The fourth proportional to 27,708.58, 38,228.36 and 15,768.93 is: 21,755.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,708.58 : 38,228.36 = 15,768.93 : x
  2. Step 2: Convert to fraction form
    27,708.58/38,228.36 = 15,768.93/x
  3. Step 3: Cross multiply
    27,708.58x = 38,228.36 × 15,768.93
  4. Step 4: Simplify right side
    27,708.58x = 602,820,332.85
  5. Step 5: Solve for x
    x = 602,820,332.85/27,708.58
  6. Step 6: Final answer
    x = 21,755.73

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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.