Home / 19,921.78-29,882.64-6,070.78

Finding the Fourth Proportional to 19,921.78, 29,882.64 and 6,070.78

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Solution

The fourth proportional to 19,921.78, 29,882.64 and 6,070.78 is: 9,106.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.78 : 29,882.64 = 6,070.78 : x
  2. Step 2: Convert to fraction form
    19,921.78/29,882.64 = 6,070.78/x
  3. Step 3: Cross multiply
    19,921.78x = 29,882.64 × 6,070.78
  4. Step 4: Simplify right side
    19,921.78x = 181,410,933.26
  5. Step 5: Solve for x
    x = 181,410,933.26/19,921.78
  6. Step 6: Final answer
    x = 9,106.16

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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.