Home / 19,698.70-27,152.04-13,719.98

Finding the Fourth Proportional to 19,698.70, 27,152.04 and 13,719.98

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Solution

The fourth proportional to 19,698.70, 27,152.04 and 13,719.98 is: 18,911.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,698.70 : 27,152.04 = 13,719.98 : x
  2. Step 2: Convert to fraction form
    19,698.70/27,152.04 = 13,719.98/x
  3. Step 3: Cross multiply
    19,698.70x = 27,152.04 × 13,719.98
  4. Step 4: Simplify right side
    19,698.70x = 372,525,445.76
  5. Step 5: Solve for x
    x = 372,525,445.76/19,698.70
  6. Step 6: Final answer
    x = 18,911.17

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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.