Home / 31,942.08-47,913.12-8,570.88

Finding the Fourth Proportional to 31,942.08, 47,913.12 and 8,570.88

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Solution

The fourth proportional to 31,942.08, 47,913.12 and 8,570.88 is: 12,856.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,942.08 : 47,913.12 = 8,570.88 : x
  2. Step 2: Convert to fraction form
    31,942.08/47,913.12 = 8,570.88/x
  3. Step 3: Cross multiply
    31,942.08x = 47,913.12 × 8,570.88
  4. Step 4: Simplify right side
    31,942.08x = 410,657,601.95
  5. Step 5: Solve for x
    x = 410,657,601.95/31,942.08
  6. Step 6: Final answer
    x = 12,856.32

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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.