Home / 13,353.15-20,031.08-3,492.51

Finding the Fourth Proportional to 13,353.15, 20,031.08 and 3,492.51

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Solution

The fourth proportional to 13,353.15, 20,031.08 and 3,492.51 is: 5,239.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.15 : 20,031.08 = 3,492.51 : x
  2. Step 2: Convert to fraction form
    13,353.15/20,031.08 = 3,492.51/x
  3. Step 3: Cross multiply
    13,353.15x = 20,031.08 × 3,492.51
  4. Step 4: Simplify right side
    13,353.15x = 69,958,747.21
  5. Step 5: Solve for x
    x = 69,958,747.21/13,353.15
  6. Step 6: Final answer
    x = 5,239.12

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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.