Home / 38,836.66-53,594.08-21,840.90

Finding the Fourth Proportional to 38,836.66, 53,594.08 and 21,840.90

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Solution

The fourth proportional to 38,836.66, 53,594.08 and 21,840.90 is: 30,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,836.66 : 53,594.08 = 21,840.90 : x
  2. Step 2: Convert to fraction form
    38,836.66/53,594.08 = 21,840.90/x
  3. Step 3: Cross multiply
    38,836.66x = 53,594.08 × 21,840.90
  4. Step 4: Simplify right side
    38,836.66x = 1,170,542,941.87
  5. Step 5: Solve for x
    x = 1,170,542,941.87/38,836.66
  6. Step 6: Final answer
    x = 30,140.15

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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.