Home / 30,216.60-45,325.20-9,156.69

Finding the Fourth Proportional to 30,216.60, 45,325.20 and 9,156.69

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Solution

The fourth proportional to 30,216.60, 45,325.20 and 9,156.69 is: 13,735.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,216.60 : 45,325.20 = 9,156.69 : x
  2. Step 2: Convert to fraction form
    30,216.60/45,325.20 = 9,156.69/x
  3. Step 3: Cross multiply
    30,216.60x = 45,325.20 × 9,156.69
  4. Step 4: Simplify right side
    30,216.60x = 415,028,805.59
  5. Step 5: Solve for x
    x = 415,028,805.59/30,216.60
  6. Step 6: Final answer
    x = 13,735.13

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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.