Home / 20,725.89-31,070.37-9,626.53

Finding the Fourth Proportional to 20,725.89, 31,070.37 and 9,626.53

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Solution

The fourth proportional to 20,725.89, 31,070.37 and 9,626.53 is: 14,431.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.89 : 31,070.37 = 9,626.53 : x
  2. Step 2: Convert to fraction form
    20,725.89/31,070.37 = 9,626.53/x
  3. Step 3: Cross multiply
    20,725.89x = 31,070.37 × 9,626.53
  4. Step 4: Simplify right side
    20,725.89x = 299,099,848.92
  5. Step 5: Solve for x
    x = 299,099,848.92/20,725.89
  6. Step 6: Final answer
    x = 14,431.22

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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.