Home / 20,288.94-27,967.24-19,895.28

Finding the Fourth Proportional to 20,288.94, 27,967.24 and 19,895.28

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Solution

The fourth proportional to 20,288.94, 27,967.24 and 19,895.28 is: 27,424.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.94 : 27,967.24 = 19,895.28 : x
  2. Step 2: Convert to fraction form
    20,288.94/27,967.24 = 19,895.28/x
  3. Step 3: Cross multiply
    20,288.94x = 27,967.24 × 19,895.28
  4. Step 4: Simplify right side
    20,288.94x = 556,416,070.63
  5. Step 5: Solve for x
    x = 556,416,070.63/20,288.94
  6. Step 6: Final answer
    x = 27,424.60

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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.