Home / 18,414.36-25,411.86-10,031.40

Finding the Fourth Proportional to 18,414.36, 25,411.86 and 10,031.40

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Solution

The fourth proportional to 18,414.36, 25,411.86 and 10,031.40 is: 13,843.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.36 : 25,411.86 = 10,031.40 : x
  2. Step 2: Convert to fraction form
    18,414.36/25,411.86 = 10,031.40/x
  3. Step 3: Cross multiply
    18,414.36x = 25,411.86 × 10,031.40
  4. Step 4: Simplify right side
    18,414.36x = 254,916,532.40
  5. Step 5: Solve for x
    x = 254,916,532.40/18,414.36
  6. Step 6: Final answer
    x = 13,843.36

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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.