Home / 38,288.64-52,838.31-21,521.64

Finding the Fourth Proportional to 38,288.64, 52,838.31 and 21,521.64

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Solution

The fourth proportional to 38,288.64, 52,838.31 and 21,521.64 is: 29,699.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,288.64 : 52,838.31 = 21,521.64 : x
  2. Step 2: Convert to fraction form
    38,288.64/52,838.31 = 21,521.64/x
  3. Step 3: Cross multiply
    38,288.64x = 52,838.31 × 21,521.64
  4. Step 4: Simplify right side
    38,288.64x = 1,137,167,086.03
  5. Step 5: Solve for x
    x = 1,137,167,086.03/38,288.64
  6. Step 6: Final answer
    x = 29,699.86

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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.