Home / 38,859.71-53,623.38-21,860.57

Finding the Fourth Proportional to 38,859.71, 53,623.38 and 21,860.57

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Solution

The fourth proportional to 38,859.71, 53,623.38 and 21,860.57 is: 30,165.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,859.71 : 53,623.38 = 21,860.57 : x
  2. Step 2: Convert to fraction form
    38,859.71/53,623.38 = 21,860.57/x
  3. Step 3: Cross multiply
    38,859.71x = 53,623.38 × 21,860.57
  4. Step 4: Simplify right side
    38,859.71x = 1,172,237,384.01
  5. Step 5: Solve for x
    x = 1,172,237,384.01/38,859.71
  6. Step 6: Final answer
    x = 30,165.88

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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.