Home / 30,518.44-45,775.74-11,790.76

Finding the Fourth Proportional to 30,518.44, 45,775.74 and 11,790.76

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Solution

The fourth proportional to 30,518.44, 45,775.74 and 11,790.76 is: 17,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,518.44 : 45,775.74 = 11,790.76 : x
  2. Step 2: Convert to fraction form
    30,518.44/45,775.74 = 11,790.76/x
  3. Step 3: Cross multiply
    30,518.44x = 45,775.74 × 11,790.76
  4. Step 4: Simplify right side
    30,518.44x = 539,730,764.16
  5. Step 5: Solve for x
    x = 539,730,764.16/30,518.44
  6. Step 6: Final answer
    x = 17,685.40

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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.