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Finding the Fourth Proportional to 35,363.79, 48,788.93 and 20,245.55

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Solution

The fourth proportional to 35,363.79, 48,788.93 and 20,245.55 is: 27,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,363.79 : 48,788.93 = 20,245.55 : x
  2. Step 2: Convert to fraction form
    35,363.79/48,788.93 = 20,245.55/x
  3. Step 3: Cross multiply
    35,363.79x = 48,788.93 × 20,245.55
  4. Step 4: Simplify right side
    35,363.79x = 987,758,528.43
  5. Step 5: Solve for x
    x = 987,758,528.43/35,363.79
  6. Step 6: Final answer
    x = 27,931.35

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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.