Home / 40,413.78-60,622.29-20,687.04

Finding the Fourth Proportional to 40,413.78, 60,622.29 and 20,687.04

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Solution

The fourth proportional to 40,413.78, 60,622.29 and 20,687.04 is: 31,031.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,413.78 : 60,622.29 = 20,687.04 : x
  2. Step 2: Convert to fraction form
    40,413.78/60,622.29 = 20,687.04/x
  3. Step 3: Cross multiply
    40,413.78x = 60,622.29 × 20,687.04
  4. Step 4: Simplify right side
    40,413.78x = 1,254,095,738.12
  5. Step 5: Solve for x
    x = 1,254,095,738.12/40,413.78
  6. Step 6: Final answer
    x = 31,031.39

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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.