Home / 28,266.51-39,007.62-15,519.93

Finding the Fourth Proportional to 28,266.51, 39,007.62 and 15,519.93

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Solution

The fourth proportional to 28,266.51, 39,007.62 and 15,519.93 is: 21,417.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266.51 : 39,007.62 = 15,519.93 : x
  2. Step 2: Convert to fraction form
    28,266.51/39,007.62 = 15,519.93/x
  3. Step 3: Cross multiply
    28,266.51x = 39,007.62 × 15,519.93
  4. Step 4: Simplify right side
    28,266.51x = 605,395,385.59
  5. Step 5: Solve for x
    x = 605,395,385.59/28,266.51
  6. Step 6: Final answer
    x = 21,417.41

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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.