Home / 38,439.56-53,044.98-21,674.12

Finding the Fourth Proportional to 38,439.56, 53,044.98 and 21,674.12

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Solution

The fourth proportional to 38,439.56, 53,044.98 and 21,674.12 is: 29,909.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,439.56 : 53,044.98 = 21,674.12 : x
  2. Step 2: Convert to fraction form
    38,439.56/53,044.98 = 21,674.12/x
  3. Step 3: Cross multiply
    38,439.56x = 53,044.98 × 21,674.12
  4. Step 4: Simplify right side
    38,439.56x = 1,149,703,261.92
  5. Step 5: Solve for x
    x = 1,149,703,261.92/38,439.56
  6. Step 6: Final answer
    x = 29,909.38

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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.