Home / 21,842.22-30,133.71-13,444.14

Finding the Fourth Proportional to 21,842.22, 30,133.71 and 13,444.14

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Solution

The fourth proportional to 21,842.22, 30,133.71 and 13,444.14 is: 18,547.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,842.22 : 30,133.71 = 13,444.14 : x
  2. Step 2: Convert to fraction form
    21,842.22/30,133.71 = 13,444.14/x
  3. Step 3: Cross multiply
    21,842.22x = 30,133.71 × 13,444.14
  4. Step 4: Simplify right side
    21,842.22x = 405,121,815.96
  5. Step 5: Solve for x
    x = 405,121,815.96/21,842.22
  6. Step 6: Final answer
    x = 18,547.65

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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.