Home / 21,887.13-32,818.95-6,891.43

Finding the Fourth Proportional to 21,887.13, 32,818.95 and 6,891.43

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Solution

The fourth proportional to 21,887.13, 32,818.95 and 6,891.43 is: 10,333.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887.13 : 32,818.95 = 6,891.43 : x
  2. Step 2: Convert to fraction form
    21,887.13/32,818.95 = 6,891.43/x
  3. Step 3: Cross multiply
    21,887.13x = 32,818.95 × 6,891.43
  4. Step 4: Simplify right side
    21,887.13x = 226,169,496.60
  5. Step 5: Solve for x
    x = 226,169,496.60/21,887.13
  6. Step 6: Final answer
    x = 10,333.45

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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.