Home / 30,486.06-45,728.01-10,764.18

Finding the Fourth Proportional to 30,486.06, 45,728.01 and 10,764.18

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Solution

The fourth proportional to 30,486.06, 45,728.01 and 10,764.18 is: 16,145.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,486.06 : 45,728.01 = 10,764.18 : x
  2. Step 2: Convert to fraction form
    30,486.06/45,728.01 = 10,764.18/x
  3. Step 3: Cross multiply
    30,486.06x = 45,728.01 × 10,764.18
  4. Step 4: Simplify right side
    30,486.06x = 492,224,530.68
  5. Step 5: Solve for x
    x = 492,224,530.68/30,486.06
  6. Step 6: Final answer
    x = 16,145.89

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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.