Home / 38,399.91-52,990.17-21,406.01

Finding the Fourth Proportional to 38,399.91, 52,990.17 and 21,406.01

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Solution

The fourth proportional to 38,399.91, 52,990.17 and 21,406.01 is: 29,539.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,399.91 : 52,990.17 = 21,406.01 : x
  2. Step 2: Convert to fraction form
    38,399.91/52,990.17 = 21,406.01/x
  3. Step 3: Cross multiply
    38,399.91x = 52,990.17 × 21,406.01
  4. Step 4: Simplify right side
    38,399.91x = 1,134,308,108.92
  5. Step 5: Solve for x
    x = 1,134,308,108.92/38,399.91
  6. Step 6: Final answer
    x = 29,539.34

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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.