Home / 21,031.42-31,553.70-6,240.41

Finding the Fourth Proportional to 21,031.42, 31,553.70 and 6,240.41

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Solution

The fourth proportional to 21,031.42, 31,553.70 and 6,240.41 is: 9,362.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031.42 : 31,553.70 = 6,240.41 : x
  2. Step 2: Convert to fraction form
    21,031.42/31,553.70 = 6,240.41/x
  3. Step 3: Cross multiply
    21,031.42x = 31,553.70 × 6,240.41
  4. Step 4: Simplify right side
    21,031.42x = 196,908,025.02
  5. Step 5: Solve for x
    x = 196,908,025.02/21,031.42
  6. Step 6: Final answer
    x = 9,362.56

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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.