Home / 19,427.69-26,811.77-10,929.31

Finding the Fourth Proportional to 19,427.69, 26,811.77 and 10,929.31

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Solution

The fourth proportional to 19,427.69, 26,811.77 and 10,929.31 is: 15,083.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,427.69 : 26,811.77 = 10,929.31 : x
  2. Step 2: Convert to fraction form
    19,427.69/26,811.77 = 10,929.31/x
  3. Step 3: Cross multiply
    19,427.69x = 26,811.77 × 10,929.31
  4. Step 4: Simplify right side
    19,427.69x = 293,034,145.98
  5. Step 5: Solve for x
    x = 293,034,145.98/19,427.69
  6. Step 6: Final answer
    x = 15,083.32

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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.