Home / 26,387.18-36,413.13-15,782.66

Finding the Fourth Proportional to 26,387.18, 36,413.13 and 15,782.66

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Solution

The fourth proportional to 26,387.18, 36,413.13 and 15,782.66 is: 21,779.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,387.18 : 36,413.13 = 15,782.66 : x
  2. Step 2: Convert to fraction form
    26,387.18/36,413.13 = 15,782.66/x
  3. Step 3: Cross multiply
    26,387.18x = 36,413.13 × 15,782.66
  4. Step 4: Simplify right side
    26,387.18x = 574,696,050.33
  5. Step 5: Solve for x
    x = 574,696,050.33/26,387.18
  6. Step 6: Final answer
    x = 21,779.37

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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.