Home / 21,643.86-32,471.52-6,853.02

Finding the Fourth Proportional to 21,643.86, 32,471.52 and 6,853.02

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Solution

The fourth proportional to 21,643.86, 32,471.52 and 6,853.02 is: 10,281.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643.86 : 32,471.52 = 6,853.02 : x
  2. Step 2: Convert to fraction form
    21,643.86/32,471.52 = 6,853.02/x
  3. Step 3: Cross multiply
    21,643.86x = 32,471.52 × 6,853.02
  4. Step 4: Simplify right side
    21,643.86x = 222,527,975.99
  5. Step 5: Solve for x
    x = 222,527,975.99/21,643.86
  6. Step 6: Final answer
    x = 10,281.34

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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.