Home / 30,236.69-45,355.14-12,706.47

Finding the Fourth Proportional to 30,236.69, 45,355.14 and 12,706.47

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Solution

The fourth proportional to 30,236.69, 45,355.14 and 12,706.47 is: 19,059.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,236.69 : 45,355.14 = 12,706.47 : x
  2. Step 2: Convert to fraction form
    30,236.69/45,355.14 = 12,706.47/x
  3. Step 3: Cross multiply
    30,236.69x = 45,355.14 × 12,706.47
  4. Step 4: Simplify right side
    30,236.69x = 576,303,725.76
  5. Step 5: Solve for x
    x = 576,303,725.76/30,236.69
  6. Step 6: Final answer
    x = 19,059.75

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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.