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Finding the Fourth Proportional to 19,421.52, 26,799.84 and 10,923

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Solution

The fourth proportional to 19,421.52, 26,799.84 and 10,923 is: 15,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.52 : 26,799.84 = 10,923 : x
  2. Step 2: Convert to fraction form
    19,421.52/26,799.84 = 10,923/x
  3. Step 3: Cross multiply
    19,421.52x = 26,799.84 × 10,923
  4. Step 4: Simplify right side
    19,421.52x = 292,734,652.32
  5. Step 5: Solve for x
    x = 292,734,652.32/19,421.52
  6. Step 6: Final answer
    x = 15,072.70

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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.