Home / 28,328.13-42,453.93-10,788.39

Finding the Fourth Proportional to 28,328.13, 42,453.93 and 10,788.39

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Solution

The fourth proportional to 28,328.13, 42,453.93 and 10,788.39 is: 16,168.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.13 : 42,453.93 = 10,788.39 : x
  2. Step 2: Convert to fraction form
    28,328.13/42,453.93 = 10,788.39/x
  3. Step 3: Cross multiply
    28,328.13x = 42,453.93 × 10,788.39
  4. Step 4: Simplify right side
    28,328.13x = 458,009,553.87
  5. Step 5: Solve for x
    x = 458,009,553.87/28,328.13
  6. Step 6: Final answer
    x = 16,168.01

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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.