Home / 28,261.14-39,000.18-15,514.30

Finding the Fourth Proportional to 28,261.14, 39,000.18 and 15,514.30

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Solution

The fourth proportional to 28,261.14, 39,000.18 and 15,514.30 is: 21,409.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,261.14 : 39,000.18 = 15,514.30 : x
  2. Step 2: Convert to fraction form
    28,261.14/39,000.18 = 15,514.30/x
  3. Step 3: Cross multiply
    28,261.14x = 39,000.18 × 15,514.30
  4. Step 4: Simplify right side
    28,261.14x = 605,060,492.57
  5. Step 5: Solve for x
    x = 605,060,492.57/28,261.14
  6. Step 6: Final answer
    x = 21,409.63

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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.