Home / 21,189.06-31,784.81-8,041.14

Finding the Fourth Proportional to 21,189.06, 31,784.81 and 8,041.14

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Solution

The fourth proportional to 21,189.06, 31,784.81 and 8,041.14 is: 12,062.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,189.06 : 31,784.81 = 8,041.14 : x
  2. Step 2: Convert to fraction form
    21,189.06/31,784.81 = 8,041.14/x
  3. Step 3: Cross multiply
    21,189.06x = 31,784.81 × 8,041.14
  4. Step 4: Simplify right side
    21,189.06x = 255,586,066.88
  5. Step 5: Solve for x
    x = 255,586,066.88/21,189.06
  6. Step 6: Final answer
    x = 12,062.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.