Home / 38,816.60-53,566.97-21,821.79

Finding the Fourth Proportional to 38,816.60, 53,566.97 and 21,821.79

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Solution

The fourth proportional to 38,816.60, 53,566.97 and 21,821.79 is: 30,114.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,816.60 : 53,566.97 = 21,821.79 : x
  2. Step 2: Convert to fraction form
    38,816.60/53,566.97 = 21,821.79/x
  3. Step 3: Cross multiply
    38,816.60x = 53,566.97 × 21,821.79
  4. Step 4: Simplify right side
    38,816.60x = 1,168,927,061.17
  5. Step 5: Solve for x
    x = 1,168,927,061.17/38,816.60
  6. Step 6: Final answer
    x = 30,114.11

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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.