Home / 21,274.30-31,912.65-6,483.70

Finding the Fourth Proportional to 21,274.30, 31,912.65 and 6,483.70

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Solution

The fourth proportional to 21,274.30, 31,912.65 and 6,483.70 is: 9,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.30 : 31,912.65 = 6,483.70 : x
  2. Step 2: Convert to fraction form
    21,274.30/31,912.65 = 6,483.70/x
  3. Step 3: Cross multiply
    21,274.30x = 31,912.65 × 6,483.70
  4. Step 4: Simplify right side
    21,274.30x = 206,912,048.81
  5. Step 5: Solve for x
    x = 206,912,048.81/21,274.30
  6. Step 6: Final answer
    x = 9,725.92

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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.