Home / 30,219.28-45,303-11,741.20

Finding the Fourth Proportional to 30,219.28, 45,303 and 11,741.20

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Solution

The fourth proportional to 30,219.28, 45,303 and 11,741.20 is: 17,601.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.28 : 45,303 = 11,741.20 : x
  2. Step 2: Convert to fraction form
    30,219.28/45,303 = 11,741.20/x
  3. Step 3: Cross multiply
    30,219.28x = 45,303 × 11,741.20
  4. Step 4: Simplify right side
    30,219.28x = 531,911,583.60
  5. Step 5: Solve for x
    x = 531,911,583.60/30,219.28
  6. Step 6: Final answer
    x = 17,601.73

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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.