Home / 13,628.51-20,450.69-5,730.45

Finding the Fourth Proportional to 13,628.51, 20,450.69 and 5,730.45

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Solution

The fourth proportional to 13,628.51, 20,450.69 and 5,730.45 is: 8,599.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.51 : 20,450.69 = 5,730.45 : x
  2. Step 2: Convert to fraction form
    13,628.51/20,450.69 = 5,730.45/x
  3. Step 3: Cross multiply
    13,628.51x = 20,450.69 × 5,730.45
  4. Step 4: Simplify right side
    13,628.51x = 117,191,719.93
  5. Step 5: Solve for x
    x = 117,191,719.93/13,628.51
  6. Step 6: Final answer
    x = 8,599.01

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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.