Home / 20,886.04-31,334.46-9,202.60

Finding the Fourth Proportional to 20,886.04, 31,334.46 and 9,202.60

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Solution

The fourth proportional to 20,886.04, 31,334.46 and 9,202.60 is: 13,806.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886.04 : 31,334.46 = 9,202.60 : x
  2. Step 2: Convert to fraction form
    20,886.04/31,334.46 = 9,202.60/x
  3. Step 3: Cross multiply
    20,886.04x = 31,334.46 × 9,202.60
  4. Step 4: Simplify right side
    20,886.04x = 288,358,501.60
  5. Step 5: Solve for x
    x = 288,358,501.60/20,886.04
  6. Step 6: Final answer
    x = 13,806.28

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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.