Home / 19,807.28-27,333.96-10,855.12

Finding the Fourth Proportional to 19,807.28, 27,333.96 and 10,855.12

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Solution

The fourth proportional to 19,807.28, 27,333.96 and 10,855.12 is: 14,980.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,807.28 : 27,333.96 = 10,855.12 : x
  2. Step 2: Convert to fraction form
    19,807.28/27,333.96 = 10,855.12/x
  3. Step 3: Cross multiply
    19,807.28x = 27,333.96 × 10,855.12
  4. Step 4: Simplify right side
    19,807.28x = 296,713,415.88
  5. Step 5: Solve for x
    x = 296,713,415.88/19,807.28
  6. Step 6: Final answer
    x = 14,980.02

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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.