Home / 28,539.68-39,385.04-17,209.76

Finding the Fourth Proportional to 28,539.68, 39,385.04 and 17,209.76

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Solution

The fourth proportional to 28,539.68, 39,385.04 and 17,209.76 is: 23,749.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539.68 : 39,385.04 = 17,209.76 : x
  2. Step 2: Convert to fraction form
    28,539.68/39,385.04 = 17,209.76/x
  3. Step 3: Cross multiply
    28,539.68x = 39,385.04 × 17,209.76
  4. Step 4: Simplify right side
    28,539.68x = 677,807,085.99
  5. Step 5: Solve for x
    x = 677,807,085.99/28,539.68
  6. Step 6: Final answer
    x = 23,749.64

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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.