Home / 19,828.38-27,364.41-13,102.20

Finding the Fourth Proportional to 19,828.38, 27,364.41 and 13,102.20

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Solution

The fourth proportional to 19,828.38, 27,364.41 and 13,102.20 is: 18,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,828.38 : 27,364.41 = 13,102.20 : x
  2. Step 2: Convert to fraction form
    19,828.38/27,364.41 = 13,102.20/x
  3. Step 3: Cross multiply
    19,828.38x = 27,364.41 × 13,102.20
  4. Step 4: Simplify right side
    19,828.38x = 358,533,972.70
  5. Step 5: Solve for x
    x = 358,533,972.70/19,828.38
  6. Step 6: Final answer
    x = 18,081.86

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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.