Home / 21,448.95-32,137.85-15,177.87

Finding the Fourth Proportional to 21,448.95, 32,137.85 and 15,177.87

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Solution

The fourth proportional to 21,448.95, 32,137.85 and 15,177.87 is: 22,741.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.95 : 32,137.85 = 15,177.87 : x
  2. Step 2: Convert to fraction form
    21,448.95/32,137.85 = 15,177.87/x
  3. Step 3: Cross multiply
    21,448.95x = 32,137.85 × 15,177.87
  4. Step 4: Simplify right side
    21,448.95x = 487,784,109.38
  5. Step 5: Solve for x
    x = 487,784,109.38/21,448.95
  6. Step 6: Final answer
    x = 22,741.63

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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.