Home / 19,820.87-27,352.58-10,868.34

Finding the Fourth Proportional to 19,820.87, 27,352.58 and 10,868.34

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Solution

The fourth proportional to 19,820.87, 27,352.58 and 10,868.34 is: 14,998.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.87 : 27,352.58 = 10,868.34 : x
  2. Step 2: Convert to fraction form
    19,820.87/27,352.58 = 10,868.34/x
  3. Step 3: Cross multiply
    19,820.87x = 27,352.58 × 10,868.34
  4. Step 4: Simplify right side
    19,820.87x = 297,277,084.98
  5. Step 5: Solve for x
    x = 297,277,084.98/19,820.87
  6. Step 6: Final answer
    x = 14,998.19

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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.