Home / 38,898.38-53,676.57-21,897.19

Finding the Fourth Proportional to 38,898.38, 53,676.57 and 21,897.19

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Solution

The fourth proportional to 38,898.38, 53,676.57 and 21,897.19 is: 30,216.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,898.38 : 53,676.57 = 21,897.19 : x
  2. Step 2: Convert to fraction form
    38,898.38/53,676.57 = 21,897.19/x
  3. Step 3: Cross multiply
    38,898.38x = 53,676.57 × 21,897.19
  4. Step 4: Simplify right side
    38,898.38x = 1,175,366,051.84
  5. Step 5: Solve for x
    x = 1,175,366,051.84/38,898.38
  6. Step 6: Final answer
    x = 30,216.32

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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.