Home / 14,620.28-21,931.80-4,090.29

Finding the Fourth Proportional to 14,620.28, 21,931.80 and 4,090.29

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Solution

The fourth proportional to 14,620.28, 21,931.80 and 4,090.29 is: 6,135.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620.28 : 21,931.80 = 4,090.29 : x
  2. Step 2: Convert to fraction form
    14,620.28/21,931.80 = 4,090.29/x
  3. Step 3: Cross multiply
    14,620.28x = 21,931.80 × 4,090.29
  4. Step 4: Simplify right side
    14,620.28x = 89,707,422.22
  5. Step 5: Solve for x
    x = 89,707,422.22/14,620.28
  6. Step 6: Final answer
    x = 6,135.82

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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.