Home / 28,408.14-39,195.36-18,337.01

Finding the Fourth Proportional to 28,408.14, 39,195.36 and 18,337.01

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Solution

The fourth proportional to 28,408.14, 39,195.36 and 18,337.01 is: 25,299.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.14 : 39,195.36 = 18,337.01 : x
  2. Step 2: Convert to fraction form
    28,408.14/39,195.36 = 18,337.01/x
  3. Step 3: Cross multiply
    28,408.14x = 39,195.36 × 18,337.01
  4. Step 4: Simplify right side
    28,408.14x = 718,725,512.30
  5. Step 5: Solve for x
    x = 718,725,512.30/28,408.14
  6. Step 6: Final answer
    x = 25,299.98

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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.