Home / 38,028.60-52,479.16-21,899.08

Finding the Fourth Proportional to 38,028.60, 52,479.16 and 21,899.08

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Solution

The fourth proportional to 38,028.60, 52,479.16 and 21,899.08 is: 30,220.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,028.60 : 52,479.16 = 21,899.08 : x
  2. Step 2: Convert to fraction form
    38,028.60/52,479.16 = 21,899.08/x
  3. Step 3: Cross multiply
    38,028.60x = 52,479.16 × 21,899.08
  4. Step 4: Simplify right side
    38,028.60x = 1,149,245,323.17
  5. Step 5: Solve for x
    x = 1,149,245,323.17/38,028.60
  6. Step 6: Final answer
    x = 30,220.55

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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.