Home / 18,935.08-28,358.88-18,279

Finding the Fourth Proportional to 18,935.08, 28,358.88 and 18,279

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Solution

The fourth proportional to 18,935.08, 28,358.88 and 18,279 is: 27,376.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.08 : 28,358.88 = 18,279 : x
  2. Step 2: Convert to fraction form
    18,935.08/28,358.88 = 18,279/x
  3. Step 3: Cross multiply
    18,935.08x = 28,358.88 × 18,279
  4. Step 4: Simplify right side
    18,935.08x = 518,371,967.52
  5. Step 5: Solve for x
    x = 518,371,967.52/18,935.08
  6. Step 6: Final answer
    x = 27,376.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.