Home / 20,946.85-31,412.07-7,792.04

Finding the Fourth Proportional to 20,946.85, 31,412.07 and 7,792.04

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Solution

The fourth proportional to 20,946.85, 31,412.07 and 7,792.04 is: 11,685.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.85 : 31,412.07 = 7,792.04 : x
  2. Step 2: Convert to fraction form
    20,946.85/31,412.07 = 7,792.04/x
  3. Step 3: Cross multiply
    20,946.85x = 31,412.07 × 7,792.04
  4. Step 4: Simplify right side
    20,946.85x = 244,764,184.45
  5. Step 5: Solve for x
    x = 244,764,184.45/20,946.85
  6. Step 6: Final answer
    x = 11,685.01

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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.