Home / 21,361.39-32,047.45-9,671.47

Finding the Fourth Proportional to 21,361.39, 32,047.45 and 9,671.47

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Solution

The fourth proportional to 21,361.39, 32,047.45 and 9,671.47 is: 14,509.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,361.39 : 32,047.45 = 9,671.47 : x
  2. Step 2: Convert to fraction form
    21,361.39/32,047.45 = 9,671.47/x
  3. Step 3: Cross multiply
    21,361.39x = 32,047.45 × 9,671.47
  4. Step 4: Simplify right side
    21,361.39x = 309,945,846.95
  5. Step 5: Solve for x
    x = 309,945,846.95/21,361.39
  6. Step 6: Final answer
    x = 14,509.63

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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.