Home / 31,810.20-47,715.30-16,225.80

Finding the Fourth Proportional to 31,810.20, 47,715.30 and 16,225.80

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Solution

The fourth proportional to 31,810.20, 47,715.30 and 16,225.80 is: 24,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,810.20 : 47,715.30 = 16,225.80 : x
  2. Step 2: Convert to fraction form
    31,810.20/47,715.30 = 16,225.80/x
  3. Step 3: Cross multiply
    31,810.20x = 47,715.30 × 16,225.80
  4. Step 4: Simplify right side
    31,810.20x = 774,218,914.74
  5. Step 5: Solve for x
    x = 774,218,914.74/31,810.20
  6. Step 6: Final answer
    x = 24,338.70

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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.