Home / 17,015.20-23,477.55-9,940.25

Finding the Fourth Proportional to 17,015.20, 23,477.55 and 9,940.25

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Solution

The fourth proportional to 17,015.20, 23,477.55 and 9,940.25 is: 13,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,015.20 : 23,477.55 = 9,940.25 : x
  2. Step 2: Convert to fraction form
    17,015.20/23,477.55 = 9,940.25/x
  3. Step 3: Cross multiply
    17,015.20x = 23,477.55 × 9,940.25
  4. Step 4: Simplify right side
    17,015.20x = 233,372,737.81
  5. Step 5: Solve for x
    x = 233,372,737.81/17,015.20
  6. Step 6: Final answer
    x = 13,715.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.