Home / 38,644.17-53,326.40-21,415.38

Finding the Fourth Proportional to 38,644.17, 53,326.40 and 21,415.38

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Solution

The fourth proportional to 38,644.17, 53,326.40 and 21,415.38 is: 29,551.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,644.17 : 53,326.40 = 21,415.38 : x
  2. Step 2: Convert to fraction form
    38,644.17/53,326.40 = 21,415.38/x
  3. Step 3: Cross multiply
    38,644.17x = 53,326.40 × 21,415.38
  4. Step 4: Simplify right side
    38,644.17x = 1,142,005,012.96
  5. Step 5: Solve for x
    x = 1,142,005,012.96/38,644.17
  6. Step 6: Final answer
    x = 29,551.81

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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.