Home / 19,881.90-27,437.54-10,929.64

Finding the Fourth Proportional to 19,881.90, 27,437.54 and 10,929.64

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Solution

The fourth proportional to 19,881.90, 27,437.54 and 10,929.64 is: 15,083.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.90 : 27,437.54 = 10,929.64 : x
  2. Step 2: Convert to fraction form
    19,881.90/27,437.54 = 10,929.64/x
  3. Step 3: Cross multiply
    19,881.90x = 27,437.54 × 10,929.64
  4. Step 4: Simplify right side
    19,881.90x = 299,882,434.69
  5. Step 5: Solve for x
    x = 299,882,434.69/19,881.90
  6. Step 6: Final answer
    x = 15,083.19

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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.