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Finding the Fourth Proportional to 35,341.04, 52,942.20 and 20,518.88

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Solution

The fourth proportional to 35,341.04, 52,942.20 and 20,518.88 is: 30,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,341.04 : 52,942.20 = 20,518.88 : x
  2. Step 2: Convert to fraction form
    35,341.04/52,942.20 = 20,518.88/x
  3. Step 3: Cross multiply
    35,341.04x = 52,942.20 × 20,518.88
  4. Step 4: Simplify right side
    35,341.04x = 1,086,314,648.74
  5. Step 5: Solve for x
    x = 1,086,314,648.74/35,341.04
  6. Step 6: Final answer
    x = 30,738.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.