Home / 28,100.07-38,786.18-18,546.93

Finding the Fourth Proportional to 28,100.07, 38,786.18 and 18,546.93

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Solution

The fourth proportional to 28,100.07, 38,786.18 and 18,546.93 is: 25,600.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,100.07 : 38,786.18 = 18,546.93 : x
  2. Step 2: Convert to fraction form
    28,100.07/38,786.18 = 18,546.93/x
  3. Step 3: Cross multiply
    28,100.07x = 38,786.18 × 18,546.93
  4. Step 4: Simplify right side
    28,100.07x = 719,364,472.69
  5. Step 5: Solve for x
    x = 719,364,472.69/28,100.07
  6. Step 6: Final answer
    x = 25,600.10

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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.