Home / 21,330.23-31,995.41-6,539.13

Finding the Fourth Proportional to 21,330.23, 31,995.41 and 6,539.13

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Solution

The fourth proportional to 21,330.23, 31,995.41 and 6,539.13 is: 9,808.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,330.23 : 31,995.41 = 6,539.13 : x
  2. Step 2: Convert to fraction form
    21,330.23/31,995.41 = 6,539.13/x
  3. Step 3: Cross multiply
    21,330.23x = 31,995.41 × 6,539.13
  4. Step 4: Simplify right side
    21,330.23x = 209,222,112.70
  5. Step 5: Solve for x
    x = 209,222,112.70/21,330.23
  6. Step 6: Final answer
    x = 9,808.72

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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.