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Finding the Fourth Proportional to 19,252.70, 28,888.65 and 10,939.10

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Solution

The fourth proportional to 19,252.70, 28,888.65 and 10,939.10 is: 16,414.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,252.70 : 28,888.65 = 10,939.10 : x
  2. Step 2: Convert to fraction form
    19,252.70/28,888.65 = 10,939.10/x
  3. Step 3: Cross multiply
    19,252.70x = 28,888.65 × 10,939.10
  4. Step 4: Simplify right side
    19,252.70x = 316,015,831.22
  5. Step 5: Solve for x
    x = 316,015,831.22/19,252.70
  6. Step 6: Final answer
    x = 16,414.10

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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.