Home / 38,489.43-53,108.94-21,493.02

Finding the Fourth Proportional to 38,489.43, 53,108.94 and 21,493.02

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Solution

The fourth proportional to 38,489.43, 53,108.94 and 21,493.02 is: 29,656.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,489.43 : 53,108.94 = 21,493.02 : x
  2. Step 2: Convert to fraction form
    38,489.43/53,108.94 = 21,493.02/x
  3. Step 3: Cross multiply
    38,489.43x = 53,108.94 × 21,493.02
  4. Step 4: Simplify right side
    38,489.43x = 1,141,471,509.60
  5. Step 5: Solve for x
    x = 1,141,471,509.60/38,489.43
  6. Step 6: Final answer
    x = 29,656.75

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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.