Home / 21,256.48-31,886.03-6,466.49

Finding the Fourth Proportional to 21,256.48, 31,886.03 and 6,466.49

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Solution

The fourth proportional to 21,256.48, 31,886.03 and 6,466.49 is: 9,700.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256.48 : 31,886.03 = 6,466.49 : x
  2. Step 2: Convert to fraction form
    21,256.48/31,886.03 = 6,466.49/x
  3. Step 3: Cross multiply
    21,256.48x = 31,886.03 × 6,466.49
  4. Step 4: Simplify right side
    21,256.48x = 206,190,694.13
  5. Step 5: Solve for x
    x = 206,190,694.13/21,256.48
  6. Step 6: Final answer
    x = 9,700.13

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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.