Home / 19,879.04-27,431.70-10,926.35

Finding the Fourth Proportional to 19,879.04, 27,431.70 and 10,926.35

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Solution

The fourth proportional to 19,879.04, 27,431.70 and 10,926.35 is: 15,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.04 : 27,431.70 = 10,926.35 : x
  2. Step 2: Convert to fraction form
    19,879.04/27,431.70 = 10,926.35/x
  3. Step 3: Cross multiply
    19,879.04x = 27,431.70 × 10,926.35
  4. Step 4: Simplify right side
    19,879.04x = 299,728,218.14
  5. Step 5: Solve for x
    x = 299,728,218.14/19,879.04
  6. Step 6: Final answer
    x = 15,077.60

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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.