Home / 38,625.66-53,308.56-21,630.86

Finding the Fourth Proportional to 38,625.66, 53,308.56 and 21,630.86

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Solution

The fourth proportional to 38,625.66, 53,308.56 and 21,630.86 is: 29,853.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,625.66 : 53,308.56 = 21,630.86 : x
  2. Step 2: Convert to fraction form
    38,625.66/53,308.56 = 21,630.86/x
  3. Step 3: Cross multiply
    38,625.66x = 53,308.56 × 21,630.86
  4. Step 4: Simplify right side
    38,625.66x = 1,153,109,998.16
  5. Step 5: Solve for x
    x = 1,153,109,998.16/38,625.66
  6. Step 6: Final answer
    x = 29,853.47

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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.