Home / 28,521.49-42,788.28-10,751.77

Finding the Fourth Proportional to 28,521.49, 42,788.28 and 10,751.77

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Solution

The fourth proportional to 28,521.49, 42,788.28 and 10,751.77 is: 16,129.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,521.49 : 42,788.28 = 10,751.77 : x
  2. Step 2: Convert to fraction form
    28,521.49/42,788.28 = 10,751.77/x
  3. Step 3: Cross multiply
    28,521.49x = 42,788.28 × 10,751.77
  4. Step 4: Simplify right side
    28,521.49x = 460,049,745.26
  5. Step 5: Solve for x
    x = 460,049,745.26/28,521.49
  6. Step 6: Final answer
    x = 16,129.93

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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.