Home / 30,233.60-45,350.40-9,459.20

Finding the Fourth Proportional to 30,233.60, 45,350.40 and 9,459.20

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Solution

The fourth proportional to 30,233.60, 45,350.40 and 9,459.20 is: 14,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,233.60 : 45,350.40 = 9,459.20 : x
  2. Step 2: Convert to fraction form
    30,233.60/45,350.40 = 9,459.20/x
  3. Step 3: Cross multiply
    30,233.60x = 45,350.40 × 9,459.20
  4. Step 4: Simplify right side
    30,233.60x = 428,978,503.68
  5. Step 5: Solve for x
    x = 428,978,503.68/30,233.60
  6. Step 6: Final answer
    x = 14,188.80

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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.