Home / 28,518.63-39,359.01-17,193.92

Finding the Fourth Proportional to 28,518.63, 39,359.01 and 17,193.92

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Solution

The fourth proportional to 28,518.63, 39,359.01 and 17,193.92 is: 23,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518.63 : 39,359.01 = 17,193.92 : x
  2. Step 2: Convert to fraction form
    28,518.63/39,359.01 = 17,193.92/x
  3. Step 3: Cross multiply
    28,518.63x = 39,359.01 × 17,193.92
  4. Step 4: Simplify right side
    28,518.63x = 676,735,758.30
  5. Step 5: Solve for x
    x = 676,735,758.30/28,518.63
  6. Step 6: Final answer
    x = 23,729.60

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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.