Home / 21,776.04-30,051.54-15,414

Finding the Fourth Proportional to 21,776.04, 30,051.54 and 15,414

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Solution

The fourth proportional to 21,776.04, 30,051.54 and 15,414 is: 21,271.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,776.04 : 30,051.54 = 15,414 : x
  2. Step 2: Convert to fraction form
    21,776.04/30,051.54 = 15,414/x
  3. Step 3: Cross multiply
    21,776.04x = 30,051.54 × 15,414
  4. Step 4: Simplify right side
    21,776.04x = 463,214,437.56
  5. Step 5: Solve for x
    x = 463,214,437.56/21,776.04
  6. Step 6: Final answer
    x = 21,271.75

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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.