Home / 38,864.06-53,632.23-21,869.18

Finding the Fourth Proportional to 38,864.06, 53,632.23 and 21,869.18

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Solution

The fourth proportional to 38,864.06, 53,632.23 and 21,869.18 is: 30,179.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,864.06 : 53,632.23 = 21,869.18 : x
  2. Step 2: Convert to fraction form
    38,864.06/53,632.23 = 21,869.18/x
  3. Step 3: Cross multiply
    38,864.06x = 53,632.23 × 21,869.18
  4. Step 4: Simplify right side
    38,864.06x = 1,172,892,891.67
  5. Step 5: Solve for x
    x = 1,172,892,891.67/38,864.06
  6. Step 6: Final answer
    x = 30,179.37

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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.