Home / 30,066.80-45,099.88-9,290.48

Finding the Fourth Proportional to 30,066.80, 45,099.88 and 9,290.48

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Solution

The fourth proportional to 30,066.80, 45,099.88 and 9,290.48 is: 13,935.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,066.80 : 45,099.88 = 9,290.48 : x
  2. Step 2: Convert to fraction form
    30,066.80/45,099.88 = 9,290.48/x
  3. Step 3: Cross multiply
    30,066.80x = 45,099.88 × 9,290.48
  4. Step 4: Simplify right side
    30,066.80x = 418,999,533.14
  5. Step 5: Solve for x
    x = 418,999,533.14/30,066.80
  6. Step 6: Final answer
    x = 13,935.62

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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.