Home / 28,815.48-39,765.24-16,240.08

Finding the Fourth Proportional to 28,815.48, 39,765.24 and 16,240.08

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Solution

The fourth proportional to 28,815.48, 39,765.24 and 16,240.08 is: 22,411.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,815.48 : 39,765.24 = 16,240.08 : x
  2. Step 2: Convert to fraction form
    28,815.48/39,765.24 = 16,240.08/x
  3. Step 3: Cross multiply
    28,815.48x = 39,765.24 × 16,240.08
  4. Step 4: Simplify right side
    28,815.48x = 645,790,678.82
  5. Step 5: Solve for x
    x = 645,790,678.82/28,815.48
  6. Step 6: Final answer
    x = 22,411.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.