Home / 25,638.54-35,371.28-18,940.26

Finding the Fourth Proportional to 25,638.54, 35,371.28 and 18,940.26

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Solution

The fourth proportional to 25,638.54, 35,371.28 and 18,940.26 is: 26,130.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,638.54 : 35,371.28 = 18,940.26 : x
  2. Step 2: Convert to fraction form
    25,638.54/35,371.28 = 18,940.26/x
  3. Step 3: Cross multiply
    25,638.54x = 35,371.28 × 18,940.26
  4. Step 4: Simplify right side
    25,638.54x = 669,941,239.73
  5. Step 5: Solve for x
    x = 669,941,239.73/25,638.54
  6. Step 6: Final answer
    x = 26,130.24

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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.