Home / 21,805.34-30,091.57-12,373.16

Finding the Fourth Proportional to 21,805.34, 30,091.57 and 12,373.16

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Solution

The fourth proportional to 21,805.34, 30,091.57 and 12,373.16 is: 17,075.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,805.34 : 30,091.57 = 12,373.16 : x
  2. Step 2: Convert to fraction form
    21,805.34/30,091.57 = 12,373.16/x
  3. Step 3: Cross multiply
    21,805.34x = 30,091.57 × 12,373.16
  4. Step 4: Simplify right side
    21,805.34x = 372,327,628.87
  5. Step 5: Solve for x
    x = 372,327,628.87/21,805.34
  6. Step 6: Final answer
    x = 17,075.07

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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.