Home / 22,185.25-30,615.65-15,124.03

Finding the Fourth Proportional to 22,185.25, 30,615.65 and 15,124.03

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Solution

The fourth proportional to 22,185.25, 30,615.65 and 15,124.03 is: 20,871.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,185.25 : 30,615.65 = 15,124.03 : x
  2. Step 2: Convert to fraction form
    22,185.25/30,615.65 = 15,124.03/x
  3. Step 3: Cross multiply
    22,185.25x = 30,615.65 × 15,124.03
  4. Step 4: Simplify right side
    22,185.25x = 463,032,009.07
  5. Step 5: Solve for x
    x = 463,032,009.07/22,185.25
  6. Step 6: Final answer
    x = 20,871.16

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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.