Home / 57,431.89-86,147.86-17,992.07

Finding the Fourth Proportional to 57,431.89, 86,147.86 and 17,992.07

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Solution

The fourth proportional to 57,431.89, 86,147.86 and 17,992.07 is: 26,988.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,431.89 : 86,147.86 = 17,992.07 : x
  2. Step 2: Convert to fraction form
    57,431.89/86,147.86 = 17,992.07/x
  3. Step 3: Cross multiply
    57,431.89x = 86,147.86 × 17,992.07
  4. Step 4: Simplify right side
    57,431.89x = 1,549,978,327.47
  5. Step 5: Solve for x
    x = 1,549,978,327.47/57,431.89
  6. Step 6: Final answer
    x = 26,988.11

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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.