Home / 30,265.26-45,435.69-20,448.06

Finding the Fourth Proportional to 30,265.26, 45,435.69 and 20,448.06

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Solution

The fourth proportional to 30,265.26, 45,435.69 and 20,448.06 is: 30,697.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,265.26 : 45,435.69 = 20,448.06 : x
  2. Step 2: Convert to fraction form
    30,265.26/45,435.69 = 20,448.06/x
  3. Step 3: Cross multiply
    30,265.26x = 45,435.69 × 20,448.06
  4. Step 4: Simplify right side
    30,265.26x = 929,071,715.26
  5. Step 5: Solve for x
    x = 929,071,715.26/30,265.26
  6. Step 6: Final answer
    x = 30,697.63

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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.