Home / 30,340.52-45,507.14-12,808.08

Finding the Fourth Proportional to 30,340.52, 45,507.14 and 12,808.08

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Solution

The fourth proportional to 30,340.52, 45,507.14 and 12,808.08 is: 19,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340.52 : 45,507.14 = 12,808.08 : x
  2. Step 2: Convert to fraction form
    30,340.52/45,507.14 = 12,808.08/x
  3. Step 3: Cross multiply
    30,340.52x = 45,507.14 × 12,808.08
  4. Step 4: Simplify right side
    30,340.52x = 582,859,089.69
  5. Step 5: Solve for x
    x = 582,859,089.69/30,340.52
  6. Step 6: Final answer
    x = 19,210.58

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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.