Home / 20,857.70-28,725.86-18,024.14

Finding the Fourth Proportional to 20,857.70, 28,725.86 and 18,024.14

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Solution

The fourth proportional to 20,857.70, 28,725.86 and 18,024.14 is: 24,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857.70 : 28,725.86 = 18,024.14 : x
  2. Step 2: Convert to fraction form
    20,857.70/28,725.86 = 18,024.14/x
  3. Step 3: Cross multiply
    20,857.70x = 28,725.86 × 18,024.14
  4. Step 4: Simplify right side
    20,857.70x = 517,759,039.14
  5. Step 5: Solve for x
    x = 517,759,039.14/20,857.70
  6. Step 6: Final answer
    x = 24,823.40

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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.