Home / 18,907.38-28,333.17-16,831.35

Finding the Fourth Proportional to 18,907.38, 28,333.17 and 16,831.35

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Solution

The fourth proportional to 18,907.38, 28,333.17 and 16,831.35 is: 25,222.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.38 : 28,333.17 = 16,831.35 : x
  2. Step 2: Convert to fraction form
    18,907.38/28,333.17 = 16,831.35/x
  3. Step 3: Cross multiply
    18,907.38x = 28,333.17 × 16,831.35
  4. Step 4: Simplify right side
    18,907.38x = 476,885,500.88
  5. Step 5: Solve for x
    x = 476,885,500.88/18,907.38
  6. Step 6: Final answer
    x = 25,222.19

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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.