Home / 57,613.56-86,430.96-20,172.84

Finding the Fourth Proportional to 57,613.56, 86,430.96 and 20,172.84

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Solution

The fourth proportional to 57,613.56, 86,430.96 and 20,172.84 is: 30,262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,613.56 : 86,430.96 = 20,172.84 : x
  2. Step 2: Convert to fraction form
    57,613.56/86,430.96 = 20,172.84/x
  3. Step 3: Cross multiply
    57,613.56x = 86,430.96 × 20,172.84
  4. Step 4: Simplify right side
    57,613.56x = 1,743,557,927.13
  5. Step 5: Solve for x
    x = 1,743,557,927.13/57,613.56
  6. Step 6: Final answer
    x = 30,262.98

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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.