Home / 32,728.99-45,163.32-18,388.03

Finding the Fourth Proportional to 32,728.99, 45,163.32 and 18,388.03

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Solution

The fourth proportional to 32,728.99, 45,163.32 and 18,388.03 is: 25,373.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,728.99 : 45,163.32 = 18,388.03 : x
  2. Step 2: Convert to fraction form
    32,728.99/45,163.32 = 18,388.03/x
  3. Step 3: Cross multiply
    32,728.99x = 45,163.32 × 18,388.03
  4. Step 4: Simplify right side
    32,728.99x = 830,464,483.06
  5. Step 5: Solve for x
    x = 830,464,483.06/32,728.99
  6. Step 6: Final answer
    x = 25,373.97

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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.