Home / 28,101.01-38,778.94-15,353.92

Finding the Fourth Proportional to 28,101.01, 38,778.94 and 15,353.92

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Solution

The fourth proportional to 28,101.01, 38,778.94 and 15,353.92 is: 21,188.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101.01 : 38,778.94 = 15,353.92 : x
  2. Step 2: Convert to fraction form
    28,101.01/38,778.94 = 15,353.92/x
  3. Step 3: Cross multiply
    28,101.01x = 38,778.94 × 15,353.92
  4. Step 4: Simplify right side
    28,101.01x = 595,408,810.11
  5. Step 5: Solve for x
    x = 595,408,810.11/28,101.01
  6. Step 6: Final answer
    x = 21,188.16

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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.