Home / 28,856.09-39,821.45-16,280.84

Finding the Fourth Proportional to 28,856.09, 39,821.45 and 16,280.84

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Solution

The fourth proportional to 28,856.09, 39,821.45 and 16,280.84 is: 22,467.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.09 : 39,821.45 = 16,280.84 : x
  2. Step 2: Convert to fraction form
    28,856.09/39,821.45 = 16,280.84/x
  3. Step 3: Cross multiply
    28,856.09x = 39,821.45 × 16,280.84
  4. Step 4: Simplify right side
    28,856.09x = 648,326,375.51
  5. Step 5: Solve for x
    x = 648,326,375.51/28,856.09
  6. Step 6: Final answer
    x = 22,467.58

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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.