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Finding the Fourth Proportional to 47,210.59, 70,783.08 and 20,900.98

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Solution

The fourth proportional to 47,210.59, 70,783.08 and 20,900.98 is: 31,336.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,210.59 : 70,783.08 = 20,900.98 : x
  2. Step 2: Convert to fraction form
    47,210.59/70,783.08 = 20,900.98/x
  3. Step 3: Cross multiply
    47,210.59x = 70,783.08 × 20,900.98
  4. Step 4: Simplify right side
    47,210.59x = 1,479,435,739.42
  5. Step 5: Solve for x
    x = 1,479,435,739.42/47,210.59
  6. Step 6: Final answer
    x = 31,336.95

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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.