Home / 21,377.24-29,508.84-19,135.16

Finding the Fourth Proportional to 21,377.24, 29,508.84 and 19,135.16

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Solution

The fourth proportional to 21,377.24, 29,508.84 and 19,135.16 is: 26,413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.24 : 29,508.84 = 19,135.16 : x
  2. Step 2: Convert to fraction form
    21,377.24/29,508.84 = 19,135.16/x
  3. Step 3: Cross multiply
    21,377.24x = 29,508.84 × 19,135.16
  4. Step 4: Simplify right side
    21,377.24x = 564,656,374.81
  5. Step 5: Solve for x
    x = 564,656,374.81/21,377.24
  6. Step 6: Final answer
    x = 26,413.90

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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.