Home / 21,551.31-32,336.69-9,867.87

Finding the Fourth Proportional to 21,551.31, 32,336.69 and 9,867.87

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Solution

The fourth proportional to 21,551.31, 32,336.69 and 9,867.87 is: 14,806.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.31 : 32,336.69 = 9,867.87 : x
  2. Step 2: Convert to fraction form
    21,551.31/32,336.69 = 9,867.87/x
  3. Step 3: Cross multiply
    21,551.31x = 32,336.69 × 9,867.87
  4. Step 4: Simplify right side
    21,551.31x = 319,094,203.81
  5. Step 5: Solve for x
    x = 319,094,203.81/21,551.31
  6. Step 6: Final answer
    x = 14,806.26

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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.