Home / 30,007.01-45,015.98-10,287.56

Finding the Fourth Proportional to 30,007.01, 45,015.98 and 10,287.56

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Solution

The fourth proportional to 30,007.01, 45,015.98 and 10,287.56 is: 15,433.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,007.01 : 45,015.98 = 10,287.56 : x
  2. Step 2: Convert to fraction form
    30,007.01/45,015.98 = 10,287.56/x
  3. Step 3: Cross multiply
    30,007.01x = 45,015.98 × 10,287.56
  4. Step 4: Simplify right side
    30,007.01x = 463,104,318.69
  5. Step 5: Solve for x
    x = 463,104,318.69/30,007.01
  6. Step 6: Final answer
    x = 15,433.21

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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.