Home / 13,393.31-20,090.90-3,532.50

Finding the Fourth Proportional to 13,393.31, 20,090.90 and 3,532.50

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Solution

The fourth proportional to 13,393.31, 20,090.90 and 3,532.50 is: 5,299.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.31 : 20,090.90 = 3,532.50 : x
  2. Step 2: Convert to fraction form
    13,393.31/20,090.90 = 3,532.50/x
  3. Step 3: Cross multiply
    13,393.31x = 20,090.90 × 3,532.50
  4. Step 4: Simplify right side
    13,393.31x = 70,971,113.08
  5. Step 5: Solve for x
    x = 70,971,113.08/13,393.31
  6. Step 6: Final answer
    x = 5,299.00

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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.