Home / 47,986.96-71,985.72-18,430.16

Finding the Fourth Proportional to 47,986.96, 71,985.72 and 18,430.16

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Solution

The fourth proportional to 47,986.96, 71,985.72 and 18,430.16 is: 27,647.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,986.96 : 71,985.72 = 18,430.16 : x
  2. Step 2: Convert to fraction form
    47,986.96/71,985.72 = 18,430.16/x
  3. Step 3: Cross multiply
    47,986.96x = 71,985.72 × 18,430.16
  4. Step 4: Simplify right side
    47,986.96x = 1,326,708,337.32
  5. Step 5: Solve for x
    x = 1,326,708,337.32/47,986.96
  6. Step 6: Final answer
    x = 27,647.27

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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.