Home / 37,720.16-52,056.36-21,808.64

Finding the Fourth Proportional to 37,720.16, 52,056.36 and 21,808.64

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Solution

The fourth proportional to 37,720.16, 52,056.36 and 21,808.64 is: 30,097.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,720.16 : 52,056.36 = 21,808.64 : x
  2. Step 2: Convert to fraction form
    37,720.16/52,056.36 = 21,808.64/x
  3. Step 3: Cross multiply
    37,720.16x = 52,056.36 × 21,808.64
  4. Step 4: Simplify right side
    37,720.16x = 1,135,278,414.95
  5. Step 5: Solve for x
    x = 1,135,278,414.95/37,720.16
  6. Step 6: Final answer
    x = 30,097.39

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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.