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Finding the Fourth Proportional to 35,604.66, 53,438.67 and 18,978.42

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Solution

The fourth proportional to 35,604.66, 53,438.67 and 18,978.42 is: 28,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,604.66 : 53,438.67 = 18,978.42 : x
  2. Step 2: Convert to fraction form
    35,604.66/53,438.67 = 18,978.42/x
  3. Step 3: Cross multiply
    35,604.66x = 53,438.67 × 18,978.42
  4. Step 4: Simplify right side
    35,604.66x = 1,014,181,523.50
  5. Step 5: Solve for x
    x = 1,014,181,523.50/35,604.66
  6. Step 6: Final answer
    x = 28,484.52

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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.