Home / 19,971.92-27,567.56-12,898.20

Finding the Fourth Proportional to 19,971.92, 27,567.56 and 12,898.20

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Solution

The fourth proportional to 19,971.92, 27,567.56 and 12,898.20 is: 17,803.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.92 : 27,567.56 = 12,898.20 : x
  2. Step 2: Convert to fraction form
    19,971.92/27,567.56 = 12,898.20/x
  3. Step 3: Cross multiply
    19,971.92x = 27,567.56 × 12,898.20
  4. Step 4: Simplify right side
    19,971.92x = 355,571,902.39
  5. Step 5: Solve for x
    x = 355,571,902.39/19,971.92
  6. Step 6: Final answer
    x = 17,803.59

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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.