Home / 31,919.06-47,878.61-8,545.50

Finding the Fourth Proportional to 31,919.06, 47,878.61 and 8,545.50

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Solution

The fourth proportional to 31,919.06, 47,878.61 and 8,545.50 is: 12,818.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,919.06 : 47,878.61 = 8,545.50 : x
  2. Step 2: Convert to fraction form
    31,919.06/47,878.61 = 8,545.50/x
  3. Step 3: Cross multiply
    31,919.06x = 47,878.61 × 8,545.50
  4. Step 4: Simplify right side
    31,919.06x = 409,146,619.03
  5. Step 5: Solve for x
    x = 409,146,619.03/31,919.06
  6. Step 6: Final answer
    x = 12,818.25

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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.