Home / 28,126.20-38,808.54-15,548.52

Finding the Fourth Proportional to 28,126.20, 38,808.54 and 15,548.52

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Solution

The fourth proportional to 28,126.20, 38,808.54 and 15,548.52 is: 21,453.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.20 : 38,808.54 = 15,548.52 : x
  2. Step 2: Convert to fraction form
    28,126.20/38,808.54 = 15,548.52/x
  3. Step 3: Cross multiply
    28,126.20x = 38,808.54 × 15,548.52
  4. Step 4: Simplify right side
    28,126.20x = 603,415,360.36
  5. Step 5: Solve for x
    x = 603,415,360.36/28,126.20
  6. Step 6: Final answer
    x = 21,453.85

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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.