Home / 28,543.29-39,388.32-15,796.23

Finding the Fourth Proportional to 28,543.29, 39,388.32 and 15,796.23

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Solution

The fourth proportional to 28,543.29, 39,388.32 and 15,796.23 is: 21,798.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.29 : 39,388.32 = 15,796.23 : x
  2. Step 2: Convert to fraction form
    28,543.29/39,388.32 = 15,796.23/x
  3. Step 3: Cross multiply
    28,543.29x = 39,388.32 × 15,796.23
  4. Step 4: Simplify right side
    28,543.29x = 622,186,962.03
  5. Step 5: Solve for x
    x = 622,186,962.03/28,543.29
  6. Step 6: Final answer
    x = 21,798.01

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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.