Home / 15,860.34-23,790.78-4,172.63

Finding the Fourth Proportional to 15,860.34, 23,790.78 and 4,172.63

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Solution

The fourth proportional to 15,860.34, 23,790.78 and 4,172.63 is: 6,259.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,860.34 : 23,790.78 = 4,172.63 : x
  2. Step 2: Convert to fraction form
    15,860.34/23,790.78 = 4,172.63/x
  3. Step 3: Cross multiply
    15,860.34x = 23,790.78 × 4,172.63
  4. Step 4: Simplify right side
    15,860.34x = 99,270,003.40
  5. Step 5: Solve for x
    x = 99,270,003.40/15,860.34
  6. Step 6: Final answer
    x = 6,259.01

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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.