Home / 21,031.02-31,541.67-6,236.37

Finding the Fourth Proportional to 21,031.02, 31,541.67 and 6,236.37

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Solution

The fourth proportional to 21,031.02, 31,541.67 and 6,236.37 is: 9,353.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031.02 : 31,541.67 = 6,236.37 : x
  2. Step 2: Convert to fraction form
    21,031.02/31,541.67 = 6,236.37/x
  3. Step 3: Cross multiply
    21,031.02x = 31,541.67 × 6,236.37
  4. Step 4: Simplify right side
    21,031.02x = 196,705,603.39
  5. Step 5: Solve for x
    x = 196,705,603.39/21,031.02
  6. Step 6: Final answer
    x = 9,353.12

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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.