Home / 47,280.16-70,914.96-12,222.88

Finding the Fourth Proportional to 47,280.16, 70,914.96 and 12,222.88

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Solution

The fourth proportional to 47,280.16, 70,914.96 and 12,222.88 is: 18,332.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,280.16 : 70,914.96 = 12,222.88 : x
  2. Step 2: Convert to fraction form
    47,280.16/70,914.96 = 12,222.88/x
  3. Step 3: Cross multiply
    47,280.16x = 70,914.96 × 12,222.88
  4. Step 4: Simplify right side
    47,280.16x = 866,785,046.28
  5. Step 5: Solve for x
    x = 866,785,046.28/47,280.16
  6. Step 6: Final answer
    x = 18,332.96

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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.