Home / 23,165.82-31,969.02-13,603.20

Finding the Fourth Proportional to 23,165.82, 31,969.02 and 13,603.20

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Solution

The fourth proportional to 23,165.82, 31,969.02 and 13,603.20 is: 18,772.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,165.82 : 31,969.02 = 13,603.20 : x
  2. Step 2: Convert to fraction form
    23,165.82/31,969.02 = 13,603.20/x
  3. Step 3: Cross multiply
    23,165.82x = 31,969.02 × 13,603.20
  4. Step 4: Simplify right side
    23,165.82x = 434,880,972.86
  5. Step 5: Solve for x
    x = 434,880,972.86/23,165.82
  6. Step 6: Final answer
    x = 18,772.53

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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.