Home / 21,631.31-32,446.76-6,840.23

Finding the Fourth Proportional to 21,631.31, 32,446.76 and 6,840.23

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Solution

The fourth proportional to 21,631.31, 32,446.76 and 6,840.23 is: 10,260.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.31 : 32,446.76 = 6,840.23 : x
  2. Step 2: Convert to fraction form
    21,631.31/32,446.76 = 6,840.23/x
  3. Step 3: Cross multiply
    21,631.31x = 32,446.76 × 6,840.23
  4. Step 4: Simplify right side
    21,631.31x = 221,943,301.15
  5. Step 5: Solve for x
    x = 221,943,301.15/21,631.31
  6. Step 6: Final answer
    x = 10,260.28

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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.