Home / 21,223.50-31,835.25-6,631.50

Finding the Fourth Proportional to 21,223.50, 31,835.25 and 6,631.50

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Solution

The fourth proportional to 21,223.50, 31,835.25 and 6,631.50 is: 9,947.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223.50 : 31,835.25 = 6,631.50 : x
  2. Step 2: Convert to fraction form
    21,223.50/31,835.25 = 6,631.50/x
  3. Step 3: Cross multiply
    21,223.50x = 31,835.25 × 6,631.50
  4. Step 4: Simplify right side
    21,223.50x = 211,115,460.38
  5. Step 5: Solve for x
    x = 211,115,460.38/21,223.50
  6. Step 6: Final answer
    x = 9,947.25

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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.