Home / 28,228.74-38,981.46-18,174.27

Finding the Fourth Proportional to 28,228.74, 38,981.46 and 18,174.27

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Solution

The fourth proportional to 28,228.74, 38,981.46 and 18,174.27 is: 25,097.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.74 : 38,981.46 = 18,174.27 : x
  2. Step 2: Convert to fraction form
    28,228.74/38,981.46 = 18,174.27/x
  3. Step 3: Cross multiply
    28,228.74x = 38,981.46 × 18,174.27
  4. Step 4: Simplify right side
    28,228.74x = 708,459,579.03
  5. Step 5: Solve for x
    x = 708,459,579.03/28,228.74
  6. Step 6: Final answer
    x = 25,097.10

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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.