Home / 21,798.66-30,081.87-12,846.54

Finding the Fourth Proportional to 21,798.66, 30,081.87 and 12,846.54

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Solution

The fourth proportional to 21,798.66, 30,081.87 and 12,846.54 is: 17,728.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,798.66 : 30,081.87 = 12,846.54 : x
  2. Step 2: Convert to fraction form
    21,798.66/30,081.87 = 12,846.54/x
  3. Step 3: Cross multiply
    21,798.66x = 30,081.87 × 12,846.54
  4. Step 4: Simplify right side
    21,798.66x = 386,447,946.23
  5. Step 5: Solve for x
    x = 386,447,946.23/21,798.66
  6. Step 6: Final answer
    x = 17,728.06

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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.