Home / 13,827.18-20,740.84-3,438.93

Finding the Fourth Proportional to 13,827.18, 20,740.84 and 3,438.93

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Solution

The fourth proportional to 13,827.18, 20,740.84 and 3,438.93 is: 5,158.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.18 : 20,740.84 = 3,438.93 : x
  2. Step 2: Convert to fraction form
    13,827.18/20,740.84 = 3,438.93/x
  3. Step 3: Cross multiply
    13,827.18x = 20,740.84 × 3,438.93
  4. Step 4: Simplify right side
    13,827.18x = 71,326,296.90
  5. Step 5: Solve for x
    x = 71,326,296.90/13,827.18
  6. Step 6: Final answer
    x = 5,158.41

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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.