Home / 20,445.10-30,653.30-7,954.60

Finding the Fourth Proportional to 20,445.10, 30,653.30 and 7,954.60

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Solution

The fourth proportional to 20,445.10, 30,653.30 and 7,954.60 is: 11,926.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445.10 : 30,653.30 = 7,954.60 : x
  2. Step 2: Convert to fraction form
    20,445.10/30,653.30 = 7,954.60/x
  3. Step 3: Cross multiply
    20,445.10x = 30,653.30 × 7,954.60
  4. Step 4: Simplify right side
    20,445.10x = 243,834,623.77
  5. Step 5: Solve for x
    x = 243,834,623.77/20,445.10
  6. Step 6: Final answer
    x = 11,926.31

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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.