Home / 28,546.08-39,410.80-18,627.36

Finding the Fourth Proportional to 28,546.08, 39,410.80 and 18,627.36

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Solution

The fourth proportional to 28,546.08, 39,410.80 and 18,627.36 is: 25,716.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546.08 : 39,410.80 = 18,627.36 : x
  2. Step 2: Convert to fraction form
    28,546.08/39,410.80 = 18,627.36/x
  3. Step 3: Cross multiply
    28,546.08x = 39,410.80 × 18,627.36
  4. Step 4: Simplify right side
    28,546.08x = 734,119,159.49
  5. Step 5: Solve for x
    x = 734,119,159.49/28,546.08
  6. Step 6: Final answer
    x = 25,716.99

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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.