Home / 21,913.47-32,868.59-8,757.45

Finding the Fourth Proportional to 21,913.47, 32,868.59 and 8,757.45

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Solution

The fourth proportional to 21,913.47, 32,868.59 and 8,757.45 is: 13,135.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.47 : 32,868.59 = 8,757.45 : x
  2. Step 2: Convert to fraction form
    21,913.47/32,868.59 = 8,757.45/x
  3. Step 3: Cross multiply
    21,913.47x = 32,868.59 × 8,757.45
  4. Step 4: Simplify right side
    21,913.47x = 287,844,989.71
  5. Step 5: Solve for x
    x = 287,844,989.71/21,913.47
  6. Step 6: Final answer
    x = 13,135.53

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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.