Home / 20,797.38-31,212.50-9,698.36

Finding the Fourth Proportional to 20,797.38, 31,212.50 and 9,698.36

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Solution

The fourth proportional to 20,797.38, 31,212.50 and 9,698.36 is: 14,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,797.38 : 31,212.50 = 9,698.36 : x
  2. Step 2: Convert to fraction form
    20,797.38/31,212.50 = 9,698.36/x
  3. Step 3: Cross multiply
    20,797.38x = 31,212.50 × 9,698.36
  4. Step 4: Simplify right side
    20,797.38x = 302,710,061.50
  5. Step 5: Solve for x
    x = 302,710,061.50/20,797.38
  6. Step 6: Final answer
    x = 14,555.20

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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.