Home / 38,816.43-53,568.18-21,821.01

Finding the Fourth Proportional to 38,816.43, 53,568.18 and 21,821.01

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Solution

The fourth proportional to 38,816.43, 53,568.18 and 21,821.01 is: 30,113.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,816.43 : 53,568.18 = 21,821.01 : x
  2. Step 2: Convert to fraction form
    38,816.43/53,568.18 = 21,821.01/x
  3. Step 3: Cross multiply
    38,816.43x = 53,568.18 × 21,821.01
  4. Step 4: Simplify right side
    38,816.43x = 1,168,911,791.46
  5. Step 5: Solve for x
    x = 1,168,911,791.46/38,816.43
  6. Step 6: Final answer
    x = 30,113.84

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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.