Home / 30,221.60-45,328.46-8,036.78

Finding the Fourth Proportional to 30,221.60, 45,328.46 and 8,036.78

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Solution

The fourth proportional to 30,221.60, 45,328.46 and 8,036.78 is: 12,054.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,221.60 : 45,328.46 = 8,036.78 : x
  2. Step 2: Convert to fraction form
    30,221.60/45,328.46 = 8,036.78/x
  3. Step 3: Cross multiply
    30,221.60x = 45,328.46 × 8,036.78
  4. Step 4: Simplify right side
    30,221.60x = 364,294,860.76
  5. Step 5: Solve for x
    x = 364,294,860.76/30,221.60
  6. Step 6: Final answer
    x = 12,054.12

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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.