Home / 28,317.72-39,080.34-18,741.08

Finding the Fourth Proportional to 28,317.72, 39,080.34 and 18,741.08

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Solution

The fourth proportional to 28,317.72, 39,080.34 and 18,741.08 is: 25,863.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317.72 : 39,080.34 = 18,741.08 : x
  2. Step 2: Convert to fraction form
    28,317.72/39,080.34 = 18,741.08/x
  3. Step 3: Cross multiply
    28,317.72x = 39,080.34 × 18,741.08
  4. Step 4: Simplify right side
    28,317.72x = 732,407,778.37
  5. Step 5: Solve for x
    x = 732,407,778.37/28,317.72
  6. Step 6: Final answer
    x = 25,863.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.