Home / 15,431.96-23,129.34-7,100.58

Finding the Fourth Proportional to 15,431.96, 23,129.34 and 7,100.58

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Solution

The fourth proportional to 15,431.96, 23,129.34 and 7,100.58 is: 10,642.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.96 : 23,129.34 = 7,100.58 : x
  2. Step 2: Convert to fraction form
    15,431.96/23,129.34 = 7,100.58/x
  3. Step 3: Cross multiply
    15,431.96x = 23,129.34 × 7,100.58
  4. Step 4: Simplify right side
    15,431.96x = 164,231,729.02
  5. Step 5: Solve for x
    x = 164,231,729.02/15,431.96
  6. Step 6: Final answer
    x = 10,642.31

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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.