Home / 38,396.34-52,990.83-21,403.35

Finding the Fourth Proportional to 38,396.34, 52,990.83 and 21,403.35

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Solution

The fourth proportional to 38,396.34, 52,990.83 and 21,403.35 is: 29,538.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,396.34 : 52,990.83 = 21,403.35 : x
  2. Step 2: Convert to fraction form
    38,396.34/52,990.83 = 21,403.35/x
  3. Step 3: Cross multiply
    38,396.34x = 52,990.83 × 21,403.35
  4. Step 4: Simplify right side
    38,396.34x = 1,134,181,281.28
  5. Step 5: Solve for x
    x = 1,134,181,281.28/38,396.34
  6. Step 6: Final answer
    x = 29,538.79

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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.