Home / 20,698.45-31,030.26-9,002.86

Finding the Fourth Proportional to 20,698.45, 31,030.26 and 9,002.86

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Solution

The fourth proportional to 20,698.45, 31,030.26 and 9,002.86 is: 13,496.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.45 : 31,030.26 = 9,002.86 : x
  2. Step 2: Convert to fraction form
    20,698.45/31,030.26 = 9,002.86/x
  3. Step 3: Cross multiply
    20,698.45x = 31,030.26 × 9,002.86
  4. Step 4: Simplify right side
    20,698.45x = 279,361,086.54
  5. Step 5: Solve for x
    x = 279,361,086.54/20,698.45
  6. Step 6: Final answer
    x = 13,496.72

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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.