Home / 28,440.36-39,238.02-17,260.20

Finding the Fourth Proportional to 28,440.36, 39,238.02 and 17,260.20

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Solution

The fourth proportional to 28,440.36, 39,238.02 and 17,260.20 is: 23,813.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,440.36 : 39,238.02 = 17,260.20 : x
  2. Step 2: Convert to fraction form
    28,440.36/39,238.02 = 17,260.20/x
  3. Step 3: Cross multiply
    28,440.36x = 39,238.02 × 17,260.20
  4. Step 4: Simplify right side
    28,440.36x = 677,256,072.80
  5. Step 5: Solve for x
    x = 677,256,072.80/28,440.36
  6. Step 6: Final answer
    x = 23,813.20

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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.