Home / 28,153.31-38,806.90-22,175.51

Finding the Fourth Proportional to 28,153.31, 38,806.90 and 22,175.51

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Solution

The fourth proportional to 28,153.31, 38,806.90 and 22,175.51 is: 30,567.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,153.31 : 38,806.90 = 22,175.51 : x
  2. Step 2: Convert to fraction form
    28,153.31/38,806.90 = 22,175.51/x
  3. Step 3: Cross multiply
    28,153.31x = 38,806.90 × 22,175.51
  4. Step 4: Simplify right side
    28,153.31x = 860,562,549.55
  5. Step 5: Solve for x
    x = 860,562,549.55/28,153.31
  6. Step 6: Final answer
    x = 30,567.02

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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.