Home / 21,798.40-30,081.54-12,367.04

Finding the Fourth Proportional to 21,798.40, 30,081.54 and 12,367.04

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Solution

The fourth proportional to 21,798.40, 30,081.54 and 12,367.04 is: 17,066.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,798.40 : 30,081.54 = 12,367.04 : x
  2. Step 2: Convert to fraction form
    21,798.40/30,081.54 = 12,367.04/x
  3. Step 3: Cross multiply
    21,798.40x = 30,081.54 × 12,367.04
  4. Step 4: Simplify right side
    21,798.40x = 372,019,608.44
  5. Step 5: Solve for x
    x = 372,019,608.44/21,798.40
  6. Step 6: Final answer
    x = 17,066.37

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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.