Home / 23,186.95-31,963.10-18,142.40

Finding the Fourth Proportional to 23,186.95, 31,963.10 and 18,142.40

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Solution

The fourth proportional to 23,186.95, 31,963.10 and 18,142.40 is: 25,009.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,186.95 : 31,963.10 = 18,142.40 : x
  2. Step 2: Convert to fraction form
    23,186.95/31,963.10 = 18,142.40/x
  3. Step 3: Cross multiply
    23,186.95x = 31,963.10 × 18,142.40
  4. Step 4: Simplify right side
    23,186.95x = 579,887,334.64
  5. Step 5: Solve for x
    x = 579,887,334.64/23,186.95
  6. Step 6: Final answer
    x = 25,009.21

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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.