Home / 43,847.51-65,781-20,461.19

Finding the Fourth Proportional to 43,847.51, 65,781 and 20,461.19

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Solution

The fourth proportional to 43,847.51, 65,781 and 20,461.19 is: 30,696.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,847.51 : 65,781 = 20,461.19 : x
  2. Step 2: Convert to fraction form
    43,847.51/65,781 = 20,461.19/x
  3. Step 3: Cross multiply
    43,847.51x = 65,781 × 20,461.19
  4. Step 4: Simplify right side
    43,847.51x = 1,345,957,703.84
  5. Step 5: Solve for x
    x = 1,345,957,703.84/43,847.51
  6. Step 6: Final answer
    x = 30,696.33

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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.