Home / 28,599.82-39,468.03-15,853.28

Finding the Fourth Proportional to 28,599.82, 39,468.03 and 15,853.28

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Solution

The fourth proportional to 28,599.82, 39,468.03 and 15,853.28 is: 21,877.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,599.82 : 39,468.03 = 15,853.28 : x
  2. Step 2: Convert to fraction form
    28,599.82/39,468.03 = 15,853.28/x
  3. Step 3: Cross multiply
    28,599.82x = 39,468.03 × 15,853.28
  4. Step 4: Simplify right side
    28,599.82x = 625,697,533.30
  5. Step 5: Solve for x
    x = 625,697,533.30/28,599.82
  6. Step 6: Final answer
    x = 21,877.68

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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.