Home / 28,981.21-43,442.40-16,475.39

Finding the Fourth Proportional to 28,981.21, 43,442.40 and 16,475.39

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Solution

The fourth proportional to 28,981.21, 43,442.40 and 16,475.39 is: 24,696.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981.21 : 43,442.40 = 16,475.39 : x
  2. Step 2: Convert to fraction form
    28,981.21/43,442.40 = 16,475.39/x
  3. Step 3: Cross multiply
    28,981.21x = 43,442.40 × 16,475.39
  4. Step 4: Simplify right side
    28,981.21x = 715,730,400.16
  5. Step 5: Solve for x
    x = 715,730,400.16/28,981.21
  6. Step 6: Final answer
    x = 24,696.36

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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.