Home / 38,914.05-53,704.01-21,689.10

Finding the Fourth Proportional to 38,914.05, 53,704.01 and 21,689.10

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Solution

The fourth proportional to 38,914.05, 53,704.01 and 21,689.10 is: 29,932.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,914.05 : 53,704.01 = 21,689.10 : x
  2. Step 2: Convert to fraction form
    38,914.05/53,704.01 = 21,689.10/x
  3. Step 3: Cross multiply
    38,914.05x = 53,704.01 × 21,689.10
  4. Step 4: Simplify right side
    38,914.05x = 1,164,791,643.29
  5. Step 5: Solve for x
    x = 1,164,791,643.29/38,914.05
  6. Step 6: Final answer
    x = 29,932.42

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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.