Home / 19,055.12-28,597.60-12,479.60

Finding the Fourth Proportional to 19,055.12, 28,597.60 and 12,479.60

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Solution

The fourth proportional to 19,055.12, 28,597.60 and 12,479.60 is: 18,729.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,055.12 : 28,597.60 = 12,479.60 : x
  2. Step 2: Convert to fraction form
    19,055.12/28,597.60 = 12,479.60/x
  3. Step 3: Cross multiply
    19,055.12x = 28,597.60 × 12,479.60
  4. Step 4: Simplify right side
    19,055.12x = 356,886,608.96
  5. Step 5: Solve for x
    x = 356,886,608.96/19,055.12
  6. Step 6: Final answer
    x = 18,729.17

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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.