Home / 38,989.90-53,803.56-22,221.82

Finding the Fourth Proportional to 38,989.90, 53,803.56 and 22,221.82

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Solution

The fourth proportional to 38,989.90, 53,803.56 and 22,221.82 is: 30,664.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,989.90 : 53,803.56 = 22,221.82 : x
  2. Step 2: Convert to fraction form
    38,989.90/53,803.56 = 22,221.82/x
  3. Step 3: Cross multiply
    38,989.90x = 53,803.56 × 22,221.82
  4. Step 4: Simplify right side
    38,989.90x = 1,195,613,051.27
  5. Step 5: Solve for x
    x = 1,195,613,051.27/38,989.90
  6. Step 6: Final answer
    x = 30,664.69

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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.