Home / 31,344.35-43,243.85-20,595.01

Finding the Fourth Proportional to 31,344.35, 43,243.85 and 20,595.01

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Solution

The fourth proportional to 31,344.35, 43,243.85 and 20,595.01 is: 28,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,344.35 : 43,243.85 = 20,595.01 : x
  2. Step 2: Convert to fraction form
    31,344.35/43,243.85 = 20,595.01/x
  3. Step 3: Cross multiply
    31,344.35x = 43,243.85 × 20,595.01
  4. Step 4: Simplify right side
    31,344.35x = 890,607,574.68
  5. Step 5: Solve for x
    x = 890,607,574.68/31,344.35
  6. Step 6: Final answer
    x = 28,413.66

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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.