Home / 30,016.60-45,024.90-7,829.92

Finding the Fourth Proportional to 30,016.60, 45,024.90 and 7,829.92

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Solution

The fourth proportional to 30,016.60, 45,024.90 and 7,829.92 is: 11,744.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,016.60 : 45,024.90 = 7,829.92 : x
  2. Step 2: Convert to fraction form
    30,016.60/45,024.90 = 7,829.92/x
  3. Step 3: Cross multiply
    30,016.60x = 45,024.90 × 7,829.92
  4. Step 4: Simplify right side
    30,016.60x = 352,541,365.01
  5. Step 5: Solve for x
    x = 352,541,365.01/30,016.60
  6. Step 6: Final answer
    x = 11,744.88

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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.