Home / 28,017.19-38,663.71-15,441.94

Finding the Fourth Proportional to 28,017.19, 38,663.71 and 15,441.94

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Solution

The fourth proportional to 28,017.19, 38,663.71 and 15,441.94 is: 21,309.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.19 : 38,663.71 = 15,441.94 : x
  2. Step 2: Convert to fraction form
    28,017.19/38,663.71 = 15,441.94/x
  3. Step 3: Cross multiply
    28,017.19x = 38,663.71 × 15,441.94
  4. Step 4: Simplify right side
    28,017.19x = 597,042,496.68
  5. Step 5: Solve for x
    x = 597,042,496.68/28,017.19
  6. Step 6: Final answer
    x = 21,309.87

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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.