Home / 15,431.48-23,015.56-15,164.90

Finding the Fourth Proportional to 15,431.48, 23,015.56 and 15,164.90

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Solution

The fourth proportional to 15,431.48, 23,015.56 and 15,164.90 is: 22,617.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.48 : 23,015.56 = 15,164.90 : x
  2. Step 2: Convert to fraction form
    15,431.48/23,015.56 = 15,164.90/x
  3. Step 3: Cross multiply
    15,431.48x = 23,015.56 × 15,164.90
  4. Step 4: Simplify right side
    15,431.48x = 349,028,665.84
  5. Step 5: Solve for x
    x = 349,028,665.84/15,431.48
  6. Step 6: Final answer
    x = 22,617.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.