Home / 13,802.27-20,700.46-3,938.90

Finding the Fourth Proportional to 13,802.27, 20,700.46 and 3,938.90

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Solution

The fourth proportional to 13,802.27, 20,700.46 and 3,938.90 is: 5,907.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.27 : 20,700.46 = 3,938.90 : x
  2. Step 2: Convert to fraction form
    13,802.27/20,700.46 = 3,938.90/x
  3. Step 3: Cross multiply
    13,802.27x = 20,700.46 × 3,938.90
  4. Step 4: Simplify right side
    13,802.27x = 81,537,041.89
  5. Step 5: Solve for x
    x = 81,537,041.89/13,802.27
  6. Step 6: Final answer
    x = 5,907.51

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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.