Home / 28,924.80-43,365.60-12,271.20

Finding the Fourth Proportional to 28,924.80, 43,365.60 and 12,271.20

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Solution

The fourth proportional to 28,924.80, 43,365.60 and 12,271.20 is: 18,397.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,924.80 : 43,365.60 = 12,271.20 : x
  2. Step 2: Convert to fraction form
    28,924.80/43,365.60 = 12,271.20/x
  3. Step 3: Cross multiply
    28,924.80x = 43,365.60 × 12,271.20
  4. Step 4: Simplify right side
    28,924.80x = 532,147,950.72
  5. Step 5: Solve for x
    x = 532,147,950.72/28,924.80
  6. Step 6: Final answer
    x = 18,397.64

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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.