Home / 47,280.48-70,920.72-12,222.96

Finding the Fourth Proportional to 47,280.48, 70,920.72 and 12,222.96

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Solution

The fourth proportional to 47,280.48, 70,920.72 and 12,222.96 is: 18,334.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,280.48 : 70,920.72 = 12,222.96 : x
  2. Step 2: Convert to fraction form
    47,280.48/70,920.72 = 12,222.96/x
  3. Step 3: Cross multiply
    47,280.48x = 70,920.72 × 12,222.96
  4. Step 4: Simplify right side
    47,280.48x = 866,861,123.73
  5. Step 5: Solve for x
    x = 866,861,123.73/47,280.48
  6. Step 6: Final answer
    x = 18,334.44

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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.