Home / 21,887.04-32,840.81-10,787.68

Finding the Fourth Proportional to 21,887.04, 32,840.81 and 10,787.68

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Solution

The fourth proportional to 21,887.04, 32,840.81 and 10,787.68 is: 16,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887.04 : 32,840.81 = 10,787.68 : x
  2. Step 2: Convert to fraction form
    21,887.04/32,840.81 = 10,787.68/x
  3. Step 3: Cross multiply
    21,887.04x = 32,840.81 × 10,787.68
  4. Step 4: Simplify right side
    21,887.04x = 354,276,149.22
  5. Step 5: Solve for x
    x = 354,276,149.22/21,887.04
  6. Step 6: Final answer
    x = 16,186.57

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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.