Home / 21,314.10-29,413.60-12,366.92

Finding the Fourth Proportional to 21,314.10, 29,413.60 and 12,366.92

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Solution

The fourth proportional to 21,314.10, 29,413.60 and 12,366.92 is: 17,066.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.10 : 29,413.60 = 12,366.92 : x
  2. Step 2: Convert to fraction form
    21,314.10/29,413.60 = 12,366.92/x
  3. Step 3: Cross multiply
    21,314.10x = 29,413.60 × 12,366.92
  4. Step 4: Simplify right side
    21,314.10x = 363,755,638.11
  5. Step 5: Solve for x
    x = 363,755,638.11/21,314.10
  6. Step 6: Final answer
    x = 17,066.43

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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.