Home / 21,259.44-31,885.20-6,464.37

Finding the Fourth Proportional to 21,259.44, 31,885.20 and 6,464.37

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Solution

The fourth proportional to 21,259.44, 31,885.20 and 6,464.37 is: 9,695.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259.44 : 31,885.20 = 6,464.37 : x
  2. Step 2: Convert to fraction form
    21,259.44/31,885.20 = 6,464.37/x
  3. Step 3: Cross multiply
    21,259.44x = 31,885.20 × 6,464.37
  4. Step 4: Simplify right side
    21,259.44x = 206,117,730.32
  5. Step 5: Solve for x
    x = 206,117,730.32/21,259.44
  6. Step 6: Final answer
    x = 9,695.35

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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.