Home / 31,631.30-47,461.71-14,099.30

Finding the Fourth Proportional to 31,631.30, 47,461.71 and 14,099.30

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Solution

The fourth proportional to 31,631.30, 47,461.71 and 14,099.30 is: 21,155.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,631.30 : 47,461.71 = 14,099.30 : x
  2. Step 2: Convert to fraction form
    31,631.30/47,461.71 = 14,099.30/x
  3. Step 3: Cross multiply
    31,631.30x = 47,461.71 × 14,099.30
  4. Step 4: Simplify right side
    31,631.30x = 669,176,887.80
  5. Step 5: Solve for x
    x = 669,176,887.80/31,631.30
  6. Step 6: Final answer
    x = 21,155.53

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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.