Home / 28,613.36-39,484.72-16,678.64

Finding the Fourth Proportional to 28,613.36, 39,484.72 and 16,678.64

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Solution

The fourth proportional to 28,613.36, 39,484.72 and 16,678.64 is: 23,015.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,613.36 : 39,484.72 = 16,678.64 : x
  2. Step 2: Convert to fraction form
    28,613.36/39,484.72 = 16,678.64/x
  3. Step 3: Cross multiply
    28,613.36x = 39,484.72 × 16,678.64
  4. Step 4: Simplify right side
    28,613.36x = 658,551,430.38
  5. Step 5: Solve for x
    x = 658,551,430.38/28,613.36
  6. Step 6: Final answer
    x = 23,015.52

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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.