Home / 38,649.84-53,337.45-21,653.97

Finding the Fourth Proportional to 38,649.84, 53,337.45 and 21,653.97

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Solution

The fourth proportional to 38,649.84, 53,337.45 and 21,653.97 is: 29,882.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,649.84 : 53,337.45 = 21,653.97 : x
  2. Step 2: Convert to fraction form
    38,649.84/53,337.45 = 21,653.97/x
  3. Step 3: Cross multiply
    38,649.84x = 53,337.45 × 21,653.97
  4. Step 4: Simplify right side
    38,649.84x = 1,154,967,542.18
  5. Step 5: Solve for x
    x = 1,154,967,542.18/38,649.84
  6. Step 6: Final answer
    x = 29,882.85

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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.