Home / 28,729.03-39,647.01-17,400.64

Finding the Fourth Proportional to 28,729.03, 39,647.01 and 17,400.64

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Solution

The fourth proportional to 28,729.03, 39,647.01 and 17,400.64 is: 24,013.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,729.03 : 39,647.01 = 17,400.64 : x
  2. Step 2: Convert to fraction form
    28,729.03/39,647.01 = 17,400.64/x
  3. Step 3: Cross multiply
    28,729.03x = 39,647.01 × 17,400.64
  4. Step 4: Simplify right side
    28,729.03x = 689,883,348.09
  5. Step 5: Solve for x
    x = 689,883,348.09/28,729.03
  6. Step 6: Final answer
    x = 24,013.46

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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.