Home / 19,879.72-27,434.73-10,927.90

Finding the Fourth Proportional to 19,879.72, 27,434.73 and 10,927.90

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Solution

The fourth proportional to 19,879.72, 27,434.73 and 10,927.90 is: 15,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.72 : 27,434.73 = 10,927.90 : x
  2. Step 2: Convert to fraction form
    19,879.72/27,434.73 = 10,927.90/x
  3. Step 3: Cross multiply
    19,879.72x = 27,434.73 × 10,927.90
  4. Step 4: Simplify right side
    19,879.72x = 299,803,985.97
  5. Step 5: Solve for x
    x = 299,803,985.97/19,879.72
  6. Step 6: Final answer
    x = 15,080.90

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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.