Home / 20,038.36-30,080.84-11,724.35

Finding the Fourth Proportional to 20,038.36, 30,080.84 and 11,724.35

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Solution

The fourth proportional to 20,038.36, 30,080.84 and 11,724.35 is: 17,600.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,038.36 : 30,080.84 = 11,724.35 : x
  2. Step 2: Convert to fraction form
    20,038.36/30,080.84 = 11,724.35/x
  3. Step 3: Cross multiply
    20,038.36x = 30,080.84 × 11,724.35
  4. Step 4: Simplify right side
    20,038.36x = 352,678,112.16
  5. Step 5: Solve for x
    x = 352,678,112.16/20,038.36
  6. Step 6: Final answer
    x = 17,600.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.