Home / 19,881.58-27,437.34-10,929.82

Finding the Fourth Proportional to 19,881.58, 27,437.34 and 10,929.82

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Solution

The fourth proportional to 19,881.58, 27,437.34 and 10,929.82 is: 15,083.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.58 : 27,437.34 = 10,929.82 : x
  2. Step 2: Convert to fraction form
    19,881.58/27,437.34 = 10,929.82/x
  3. Step 3: Cross multiply
    19,881.58x = 27,437.34 × 10,929.82
  4. Step 4: Simplify right side
    19,881.58x = 299,885,187.48
  5. Step 5: Solve for x
    x = 299,885,187.48/19,881.58
  6. Step 6: Final answer
    x = 15,083.57

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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.