Home / 19,895.12-27,455.40-10,943.20

Finding the Fourth Proportional to 19,895.12, 27,455.40 and 10,943.20

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Solution

The fourth proportional to 19,895.12, 27,455.40 and 10,943.20 is: 15,101.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,895.12 : 27,455.40 = 10,943.20 : x
  2. Step 2: Convert to fraction form
    19,895.12/27,455.40 = 10,943.20/x
  3. Step 3: Cross multiply
    19,895.12x = 27,455.40 × 10,943.20
  4. Step 4: Simplify right side
    19,895.12x = 300,449,933.28
  5. Step 5: Solve for x
    x = 300,449,933.28/19,895.12
  6. Step 6: Final answer
    x = 15,101.69

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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.