Home / 20,258.64-30,549.96-19,981.44

Finding the Fourth Proportional to 20,258.64, 30,549.96 and 19,981.44

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Solution

The fourth proportional to 20,258.64, 30,549.96 and 19,981.44 is: 30,131.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,258.64 : 30,549.96 = 19,981.44 : x
  2. Step 2: Convert to fraction form
    20,258.64/30,549.96 = 19,981.44/x
  3. Step 3: Cross multiply
    20,258.64x = 30,549.96 × 19,981.44
  4. Step 4: Simplify right side
    20,258.64x = 610,432,192.74
  5. Step 5: Solve for x
    x = 610,432,192.74/20,258.64
  6. Step 6: Final answer
    x = 30,131.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.