Home / 21,969.85-32,960.39-6,387.47

Finding the Fourth Proportional to 21,969.85, 32,960.39 and 6,387.47

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Solution

The fourth proportional to 21,969.85, 32,960.39 and 6,387.47 is: 9,582.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969.85 : 32,960.39 = 6,387.47 : x
  2. Step 2: Convert to fraction form
    21,969.85/32,960.39 = 6,387.47/x
  3. Step 3: Cross multiply
    21,969.85x = 32,960.39 × 6,387.47
  4. Step 4: Simplify right side
    21,969.85x = 210,533,552.78
  5. Step 5: Solve for x
    x = 210,533,552.78/21,969.85
  6. Step 6: Final answer
    x = 9,582.84

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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.