Home / 38,613.69-53,289.05-21,617.55

Finding the Fourth Proportional to 38,613.69, 53,289.05 and 21,617.55

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Solution

The fourth proportional to 38,613.69, 53,289.05 and 21,617.55 is: 29,833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,613.69 : 53,289.05 = 21,617.55 : x
  2. Step 2: Convert to fraction form
    38,613.69/53,289.05 = 21,617.55/x
  3. Step 3: Cross multiply
    38,613.69x = 53,289.05 × 21,617.55
  4. Step 4: Simplify right side
    38,613.69x = 1,151,978,594.74
  5. Step 5: Solve for x
    x = 1,151,978,594.74/38,613.69
  6. Step 6: Final answer
    x = 29,833.42

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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.