Home / 28,270.89-39,012.08-15,524.02

Finding the Fourth Proportional to 28,270.89, 39,012.08 and 15,524.02

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Solution

The fourth proportional to 28,270.89, 39,012.08 and 15,524.02 is: 21,422.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,270.89 : 39,012.08 = 15,524.02 : x
  2. Step 2: Convert to fraction form
    28,270.89/39,012.08 = 15,524.02/x
  3. Step 3: Cross multiply
    28,270.89x = 39,012.08 × 15,524.02
  4. Step 4: Simplify right side
    28,270.89x = 605,624,310.16
  5. Step 5: Solve for x
    x = 605,624,310.16/28,270.89
  6. Step 6: Final answer
    x = 21,422.19

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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.