Home / 28,543.76-39,391.49-15,968.51

Finding the Fourth Proportional to 28,543.76, 39,391.49 and 15,968.51

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Solution

The fourth proportional to 28,543.76, 39,391.49 and 15,968.51 is: 22,037.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.76 : 39,391.49 = 15,968.51 : x
  2. Step 2: Convert to fraction form
    28,543.76/39,391.49 = 15,968.51/x
  3. Step 3: Cross multiply
    28,543.76x = 39,391.49 × 15,968.51
  4. Step 4: Simplify right side
    28,543.76x = 629,023,322.14
  5. Step 5: Solve for x
    x = 629,023,322.14/28,543.76
  6. Step 6: Final answer
    x = 22,037.16

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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.