Home / 28,613.32-39,484.74-16,678.60

Finding the Fourth Proportional to 28,613.32, 39,484.74 and 16,678.60

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Solution

The fourth proportional to 28,613.32, 39,484.74 and 16,678.60 is: 23,015.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,613.32 : 39,484.74 = 16,678.60 : x
  2. Step 2: Convert to fraction form
    28,613.32/39,484.74 = 16,678.60/x
  3. Step 3: Cross multiply
    28,613.32x = 39,484.74 × 16,678.60
  4. Step 4: Simplify right side
    28,613.32x = 658,550,184.56
  5. Step 5: Solve for x
    x = 658,550,184.56/28,613.32
  6. Step 6: Final answer
    x = 23,015.51

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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.