Home / 30,219.46-45,327.62-9,158.64

Finding the Fourth Proportional to 30,219.46, 45,327.62 and 9,158.64

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Solution

The fourth proportional to 30,219.46, 45,327.62 and 9,158.64 is: 13,737.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.46 : 45,327.62 = 9,158.64 : x
  2. Step 2: Convert to fraction form
    30,219.46/45,327.62 = 9,158.64/x
  3. Step 3: Cross multiply
    30,219.46x = 45,327.62 × 9,158.64
  4. Step 4: Simplify right side
    30,219.46x = 415,139,353.64
  5. Step 5: Solve for x
    x = 415,139,353.64/30,219.46
  6. Step 6: Final answer
    x = 13,737.48

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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.