Home / 19,881.66-27,437.34-10,929.84

Finding the Fourth Proportional to 19,881.66, 27,437.34 and 10,929.84

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Solution

The fourth proportional to 19,881.66, 27,437.34 and 10,929.84 is: 15,083.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.66 : 27,437.34 = 10,929.84 : x
  2. Step 2: Convert to fraction form
    19,881.66/27,437.34 = 10,929.84/x
  3. Step 3: Cross multiply
    19,881.66x = 27,437.34 × 10,929.84
  4. Step 4: Simplify right side
    19,881.66x = 299,885,736.23
  5. Step 5: Solve for x
    x = 299,885,736.23/19,881.66
  6. Step 6: Final answer
    x = 15,083.54

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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.