Home / 20,179.81-27,848.51-11,228.14

Finding the Fourth Proportional to 20,179.81, 27,848.51 and 11,228.14

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Solution

The fourth proportional to 20,179.81, 27,848.51 and 11,228.14 is: 15,495.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.81 : 27,848.51 = 11,228.14 : x
  2. Step 2: Convert to fraction form
    20,179.81/27,848.51 = 11,228.14/x
  3. Step 3: Cross multiply
    20,179.81x = 27,848.51 × 11,228.14
  4. Step 4: Simplify right side
    20,179.81x = 312,686,969.07
  5. Step 5: Solve for x
    x = 312,686,969.07/20,179.81
  6. Step 6: Final answer
    x = 15,495.04

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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.