Home / 39,169.12-58,755.60-12,518.08

Finding the Fourth Proportional to 39,169.12, 58,755.60 and 12,518.08

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Solution

The fourth proportional to 39,169.12, 58,755.60 and 12,518.08 is: 18,777.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,169.12 : 58,755.60 = 12,518.08 : x
  2. Step 2: Convert to fraction form
    39,169.12/58,755.60 = 12,518.08/x
  3. Step 3: Cross multiply
    39,169.12x = 58,755.60 × 12,518.08
  4. Step 4: Simplify right side
    39,169.12x = 735,507,301.25
  5. Step 5: Solve for x
    x = 735,507,301.25/39,169.12
  6. Step 6: Final answer
    x = 18,777.73

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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.