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Finding the Fourth Proportional to 35,566.90, 53,313.90 and 20,768.20

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Solution

The fourth proportional to 35,566.90, 53,313.90 and 20,768.20 is: 31,131.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,566.90 : 53,313.90 = 20,768.20 : x
  2. Step 2: Convert to fraction form
    35,566.90/53,313.90 = 20,768.20/x
  3. Step 3: Cross multiply
    35,566.90x = 53,313.90 × 20,768.20
  4. Step 4: Simplify right side
    35,566.90x = 1,107,233,737.98
  5. Step 5: Solve for x
    x = 1,107,233,737.98/35,566.90
  6. Step 6: Final answer
    x = 31,131.02

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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.