Home / 19,879.40-27,434.08-10,927.13

Finding the Fourth Proportional to 19,879.40, 27,434.08 and 10,927.13

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Solution

The fourth proportional to 19,879.40, 27,434.08 and 10,927.13 is: 15,079.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.40 : 27,434.08 = 10,927.13 : x
  2. Step 2: Convert to fraction form
    19,879.40/27,434.08 = 10,927.13/x
  3. Step 3: Cross multiply
    19,879.40x = 27,434.08 × 10,927.13
  4. Step 4: Simplify right side
    19,879.40x = 299,775,758.59
  5. Step 5: Solve for x
    x = 299,775,758.59/19,879.40
  6. Step 6: Final answer
    x = 15,079.72

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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.