Home / 20,968.28-31,445.67-6,925.04

Finding the Fourth Proportional to 20,968.28, 31,445.67 and 6,925.04

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Solution

The fourth proportional to 20,968.28, 31,445.67 and 6,925.04 is: 10,385.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,968.28 : 31,445.67 = 6,925.04 : x
  2. Step 2: Convert to fraction form
    20,968.28/31,445.67 = 6,925.04/x
  3. Step 3: Cross multiply
    20,968.28x = 31,445.67 × 6,925.04
  4. Step 4: Simplify right side
    20,968.28x = 217,762,522.58
  5. Step 5: Solve for x
    x = 217,762,522.58/20,968.28
  6. Step 6: Final answer
    x = 10,385.33

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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.