Home / 20,701.08-31,066.20-13,323.60

Finding the Fourth Proportional to 20,701.08, 31,066.20 and 13,323.60

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Solution

The fourth proportional to 20,701.08, 31,066.20 and 13,323.60 is: 19,994.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.08 : 31,066.20 = 13,323.60 : x
  2. Step 2: Convert to fraction form
    20,701.08/31,066.20 = 13,323.60/x
  3. Step 3: Cross multiply
    20,701.08x = 31,066.20 × 13,323.60
  4. Step 4: Simplify right side
    20,701.08x = 413,913,622.32
  5. Step 5: Solve for x
    x = 413,913,622.32/20,701.08
  6. Step 6: Final answer
    x = 19,994.78

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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.