Home / 19,884.06-27,442.66-12,830.98

Finding the Fourth Proportional to 19,884.06, 27,442.66 and 12,830.98

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Solution

The fourth proportional to 19,884.06, 27,442.66 and 12,830.98 is: 17,708.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884.06 : 27,442.66 = 12,830.98 : x
  2. Step 2: Convert to fraction form
    19,884.06/27,442.66 = 12,830.98/x
  3. Step 3: Cross multiply
    19,884.06x = 27,442.66 × 12,830.98
  4. Step 4: Simplify right side
    19,884.06x = 352,116,221.61
  5. Step 5: Solve for x
    x = 352,116,221.61/19,884.06
  6. Step 6: Final answer
    x = 17,708.47

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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.