Home / 17,220.95-23,758.79-11,256.05

Finding the Fourth Proportional to 17,220.95, 23,758.79 and 11,256.05

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Solution

The fourth proportional to 17,220.95, 23,758.79 and 11,256.05 is: 15,529.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.95 : 23,758.79 = 11,256.05 : x
  2. Step 2: Convert to fraction form
    17,220.95/23,758.79 = 11,256.05/x
  3. Step 3: Cross multiply
    17,220.95x = 23,758.79 × 11,256.05
  4. Step 4: Simplify right side
    17,220.95x = 267,430,215.72
  5. Step 5: Solve for x
    x = 267,430,215.72/17,220.95
  6. Step 6: Final answer
    x = 15,529.36

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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.