Home / 28,467.52-39,263.33-21,775.30

Finding the Fourth Proportional to 28,467.52, 39,263.33 and 21,775.30

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Solution

The fourth proportional to 28,467.52, 39,263.33 and 21,775.30 is: 30,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,467.52 : 39,263.33 = 21,775.30 : x
  2. Step 2: Convert to fraction form
    28,467.52/39,263.33 = 21,775.30/x
  3. Step 3: Cross multiply
    28,467.52x = 39,263.33 × 21,775.30
  4. Step 4: Simplify right side
    28,467.52x = 854,970,746.03
  5. Step 5: Solve for x
    x = 854,970,746.03/28,467.52
  6. Step 6: Final answer
    x = 30,033.20

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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.