Home / 20,365.40-30,530.76-9,268.20

Finding the Fourth Proportional to 20,365.40, 30,530.76 and 9,268.20

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Solution

The fourth proportional to 20,365.40, 30,530.76 and 9,268.20 is: 13,894.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,365.40 : 30,530.76 = 9,268.20 : x
  2. Step 2: Convert to fraction form
    20,365.40/30,530.76 = 9,268.20/x
  3. Step 3: Cross multiply
    20,365.40x = 30,530.76 × 9,268.20
  4. Step 4: Simplify right side
    20,365.40x = 282,965,189.83
  5. Step 5: Solve for x
    x = 282,965,189.83/20,365.40
  6. Step 6: Final answer
    x = 13,894.41

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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.