Home / 28,603.83-39,473.21-15,857.07

Finding the Fourth Proportional to 28,603.83, 39,473.21 and 15,857.07

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Solution

The fourth proportional to 28,603.83, 39,473.21 and 15,857.07 is: 21,882.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,603.83 : 39,473.21 = 15,857.07 : x
  2. Step 2: Convert to fraction form
    28,603.83/39,473.21 = 15,857.07/x
  3. Step 3: Cross multiply
    28,603.83x = 39,473.21 × 15,857.07
  4. Step 4: Simplify right side
    28,603.83x = 625,929,374.81
  5. Step 5: Solve for x
    x = 625,929,374.81/28,603.83
  6. Step 6: Final answer
    x = 21,882.71

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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.