Home / 38,573.17-53,235.90-21,578.36

Finding the Fourth Proportional to 38,573.17, 53,235.90 and 21,578.36

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Solution

The fourth proportional to 38,573.17, 53,235.90 and 21,578.36 is: 29,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,573.17 : 53,235.90 = 21,578.36 : x
  2. Step 2: Convert to fraction form
    38,573.17/53,235.90 = 21,578.36/x
  3. Step 3: Cross multiply
    38,573.17x = 53,235.90 × 21,578.36
  4. Step 4: Simplify right side
    38,573.17x = 1,148,743,415.12
  5. Step 5: Solve for x
    x = 1,148,743,415.12/38,573.17
  6. Step 6: Final answer
    x = 29,780.89

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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.