Home / 30,141.47-45,219.69-9,081.03

Finding the Fourth Proportional to 30,141.47, 45,219.69 and 9,081.03

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Solution

The fourth proportional to 30,141.47, 45,219.69 and 9,081.03 is: 13,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,141.47 : 45,219.69 = 9,081.03 : x
  2. Step 2: Convert to fraction form
    30,141.47/45,219.69 = 9,081.03/x
  3. Step 3: Cross multiply
    30,141.47x = 45,219.69 × 9,081.03
  4. Step 4: Simplify right side
    30,141.47x = 410,641,361.48
  5. Step 5: Solve for x
    x = 410,641,361.48/30,141.47
  6. Step 6: Final answer
    x = 13,623.80

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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.