Home / 38,419.38-53,011.94-21,422.27

Finding the Fourth Proportional to 38,419.38, 53,011.94 and 21,422.27

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Solution

The fourth proportional to 38,419.38, 53,011.94 and 21,422.27 is: 29,558.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,419.38 : 53,011.94 = 21,422.27 : x
  2. Step 2: Convert to fraction form
    38,419.38/53,011.94 = 21,422.27/x
  3. Step 3: Cross multiply
    38,419.38x = 53,011.94 × 21,422.27
  4. Step 4: Simplify right side
    38,419.38x = 1,135,636,117.32
  5. Step 5: Solve for x
    x = 1,135,636,117.32/38,419.38
  6. Step 6: Final answer
    x = 29,558.94

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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.