Home / 30,109.08-45,172.74-11,394.84

Finding the Fourth Proportional to 30,109.08, 45,172.74 and 11,394.84

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Solution

The fourth proportional to 30,109.08, 45,172.74 and 11,394.84 is: 17,095.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,109.08 : 45,172.74 = 11,394.84 : x
  2. Step 2: Convert to fraction form
    30,109.08/45,172.74 = 11,394.84/x
  3. Step 3: Cross multiply
    30,109.08x = 45,172.74 × 11,394.84
  4. Step 4: Simplify right side
    30,109.08x = 514,736,144.66
  5. Step 5: Solve for x
    x = 514,736,144.66/30,109.08
  6. Step 6: Final answer
    x = 17,095.71

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1.5x scale

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.