Home / 40,300.80-60,427.56-12,212.40

Finding the Fourth Proportional to 40,300.80, 60,427.56 and 12,212.40

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Solution

The fourth proportional to 40,300.80, 60,427.56 and 12,212.40 is: 18,311.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,300.80 : 60,427.56 = 12,212.40 : x
  2. Step 2: Convert to fraction form
    40,300.80/60,427.56 = 12,212.40/x
  3. Step 3: Cross multiply
    40,300.80x = 60,427.56 × 12,212.40
  4. Step 4: Simplify right side
    40,300.80x = 737,965,533.74
  5. Step 5: Solve for x
    x = 737,965,533.74/40,300.80
  6. Step 6: Final answer
    x = 18,311.44

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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.