Home / 28,611.39-39,498.59-22,223.67

Finding the Fourth Proportional to 28,611.39, 39,498.59 and 22,223.67

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Solution

The fourth proportional to 28,611.39, 39,498.59 and 22,223.67 is: 30,680.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611.39 : 39,498.59 = 22,223.67 : x
  2. Step 2: Convert to fraction form
    28,611.39/39,498.59 = 22,223.67/x
  3. Step 3: Cross multiply
    28,611.39x = 39,498.59 × 22,223.67
  4. Step 4: Simplify right side
    28,611.39x = 877,803,629.63
  5. Step 5: Solve for x
    x = 877,803,629.63/28,611.39
  6. Step 6: Final answer
    x = 30,680.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.