Home / 28,260.55-39,000.08-15,514.94

Finding the Fourth Proportional to 28,260.55, 39,000.08 and 15,514.94

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Solution

The fourth proportional to 28,260.55, 39,000.08 and 15,514.94 is: 21,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,260.55 : 39,000.08 = 15,514.94 : x
  2. Step 2: Convert to fraction form
    28,260.55/39,000.08 = 15,514.94/x
  3. Step 3: Cross multiply
    28,260.55x = 39,000.08 × 15,514.94
  4. Step 4: Simplify right side
    28,260.55x = 605,083,730.84
  5. Step 5: Solve for x
    x = 605,083,730.84/28,260.55
  6. Step 6: Final answer
    x = 21,410.90

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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.