Home / 38,630.21-53,310.87-21,634.41

Finding the Fourth Proportional to 38,630.21, 53,310.87 and 21,634.41

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Solution

The fourth proportional to 38,630.21, 53,310.87 and 21,634.41 is: 29,856.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,630.21 : 53,310.87 = 21,634.41 : x
  2. Step 2: Convert to fraction form
    38,630.21/53,310.87 = 21,634.41/x
  3. Step 3: Cross multiply
    38,630.21x = 53,310.87 × 21,634.41
  4. Step 4: Simplify right side
    38,630.21x = 1,153,349,110.86
  5. Step 5: Solve for x
    x = 1,153,349,110.86/38,630.21
  6. Step 6: Final answer
    x = 29,856.14

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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.