Home / 13,347.61-20,020.04-3,485.60

Finding the Fourth Proportional to 13,347.61, 20,020.04 and 3,485.60

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Solution

The fourth proportional to 13,347.61, 20,020.04 and 3,485.60 is: 5,228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.61 : 20,020.04 = 3,485.60 : x
  2. Step 2: Convert to fraction form
    13,347.61/20,020.04 = 3,485.60/x
  3. Step 3: Cross multiply
    13,347.61x = 20,020.04 × 3,485.60
  4. Step 4: Simplify right side
    13,347.61x = 69,781,910.19
  5. Step 5: Solve for x
    x = 69,781,910.19/13,347.61
  6. Step 6: Final answer
    x = 5,228.05

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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.