Home / 13,353.16-20,030.72-3,992.44

Finding the Fourth Proportional to 13,353.16, 20,030.72 and 3,992.44

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Solution

The fourth proportional to 13,353.16, 20,030.72 and 3,992.44 is: 5,988.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.16 : 20,030.72 = 3,992.44 : x
  2. Step 2: Convert to fraction form
    13,353.16/20,030.72 = 3,992.44/x
  3. Step 3: Cross multiply
    13,353.16x = 20,030.72 × 3,992.44
  4. Step 4: Simplify right side
    13,353.16x = 79,971,447.76
  5. Step 5: Solve for x
    x = 79,971,447.76/13,353.16
  6. Step 6: Final answer
    x = 5,988.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.