Home / 28,298.08-39,049.47-15,550.99

Finding the Fourth Proportional to 28,298.08, 39,049.47 and 15,550.99

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Solution

The fourth proportional to 28,298.08, 39,049.47 and 15,550.99 is: 21,459.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,298.08 : 39,049.47 = 15,550.99 : x
  2. Step 2: Convert to fraction form
    28,298.08/39,049.47 = 15,550.99/x
  3. Step 3: Cross multiply
    28,298.08x = 39,049.47 × 15,550.99
  4. Step 4: Simplify right side
    28,298.08x = 607,257,998.44
  5. Step 5: Solve for x
    x = 607,257,998.44/28,298.08
  6. Step 6: Final answer
    x = 21,459.33

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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.