Home / 30,008.87-45,015.50-10,287.26

Finding the Fourth Proportional to 30,008.87, 45,015.50 and 10,287.26

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Solution

The fourth proportional to 30,008.87, 45,015.50 and 10,287.26 is: 15,431.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,008.87 : 45,015.50 = 10,287.26 : x
  2. Step 2: Convert to fraction form
    30,008.87/45,015.50 = 10,287.26/x
  3. Step 3: Cross multiply
    30,008.87x = 45,015.50 × 10,287.26
  4. Step 4: Simplify right side
    30,008.87x = 463,086,101.09
  5. Step 5: Solve for x
    x = 463,086,101.09/30,008.87
  6. Step 6: Final answer
    x = 15,431.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.