Home / 28,972.21-43,428.49-16,465.52

Finding the Fourth Proportional to 28,972.21, 43,428.49 and 16,465.52

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Solution

The fourth proportional to 28,972.21, 43,428.49 and 16,465.52 is: 24,681.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.21 : 43,428.49 = 16,465.52 : x
  2. Step 2: Convert to fraction form
    28,972.21/43,428.49 = 16,465.52/x
  3. Step 3: Cross multiply
    28,972.21x = 43,428.49 × 16,465.52
  4. Step 4: Simplify right side
    28,972.21x = 715,072,670.66
  5. Step 5: Solve for x
    x = 715,072,670.66/28,972.21
  6. Step 6: Final answer
    x = 24,681.33

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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.