Home / 28,659.96-39,518.80-18,575.16

Finding the Fourth Proportional to 28,659.96, 39,518.80 and 18,575.16

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Solution

The fourth proportional to 28,659.96, 39,518.80 and 18,575.16 is: 25,613.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,659.96 : 39,518.80 = 18,575.16 : x
  2. Step 2: Convert to fraction form
    28,659.96/39,518.80 = 18,575.16/x
  3. Step 3: Cross multiply
    28,659.96x = 39,518.80 × 18,575.16
  4. Step 4: Simplify right side
    28,659.96x = 734,068,033.01
  5. Step 5: Solve for x
    x = 734,068,033.01/28,659.96
  6. Step 6: Final answer
    x = 25,613.02

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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.