Home / 30,271.81-45,409.42-9,212.53

Finding the Fourth Proportional to 30,271.81, 45,409.42 and 9,212.53

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Solution

The fourth proportional to 30,271.81, 45,409.42 and 9,212.53 is: 13,819.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,271.81 : 45,409.42 = 9,212.53 : x
  2. Step 2: Convert to fraction form
    30,271.81/45,409.42 = 9,212.53/x
  3. Step 3: Cross multiply
    30,271.81x = 45,409.42 × 9,212.53
  4. Step 4: Simplify right side
    30,271.81x = 418,335,791.29
  5. Step 5: Solve for x
    x = 418,335,791.29/30,271.81
  6. Step 6: Final answer
    x = 13,819.32

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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.