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Finding the Fourth Proportional to 38,258.88, 52,782.88 and 28,211.32

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Solution

The fourth proportional to 38,258.88, 52,782.88 and 28,211.32 is: 38,921.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,258.88 : 52,782.88 = 28,211.32 : x
  2. Step 2: Convert to fraction form
    38,258.88/52,782.88 = 28,211.32/x
  3. Step 3: Cross multiply
    38,258.88x = 52,782.88 × 28,211.32
  4. Step 4: Simplify right side
    38,258.88x = 1,489,074,718.20
  5. Step 5: Solve for x
    x = 1,489,074,718.20/38,258.88
  6. Step 6: Final answer
    x = 38,921.02

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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.