Home / 38,664.06-53,354.88-21,897.06

Finding the Fourth Proportional to 38,664.06, 53,354.88 and 21,897.06

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Solution

The fourth proportional to 38,664.06, 53,354.88 and 21,897.06 is: 30,217.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,664.06 : 53,354.88 = 21,897.06 : x
  2. Step 2: Convert to fraction form
    38,664.06/53,354.88 = 21,897.06/x
  3. Step 3: Cross multiply
    38,664.06x = 53,354.88 × 21,897.06
  4. Step 4: Simplify right side
    38,664.06x = 1,168,315,008.65
  5. Step 5: Solve for x
    x = 1,168,315,008.65/38,664.06
  6. Step 6: Final answer
    x = 30,217.08

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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.