Home / 19,876.98-27,429.40-10,923.95

Finding the Fourth Proportional to 19,876.98, 27,429.40 and 10,923.95

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Solution

The fourth proportional to 19,876.98, 27,429.40 and 10,923.95 is: 15,074.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.98 : 27,429.40 = 10,923.95 : x
  2. Step 2: Convert to fraction form
    19,876.98/27,429.40 = 10,923.95/x
  3. Step 3: Cross multiply
    19,876.98x = 27,429.40 × 10,923.95
  4. Step 4: Simplify right side
    19,876.98x = 299,637,394.13
  5. Step 5: Solve for x
    x = 299,637,394.13/19,876.98
  6. Step 6: Final answer
    x = 15,074.59

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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.