Home / 28,467.96-42,708.84-12,881.40

Finding the Fourth Proportional to 28,467.96, 42,708.84 and 12,881.40

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Solution

The fourth proportional to 28,467.96, 42,708.84 and 12,881.40 is: 19,325.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,467.96 : 42,708.84 = 12,881.40 : x
  2. Step 2: Convert to fraction form
    28,467.96/42,708.84 = 12,881.40/x
  3. Step 3: Cross multiply
    28,467.96x = 42,708.84 × 12,881.40
  4. Step 4: Simplify right side
    28,467.96x = 550,149,651.58
  5. Step 5: Solve for x
    x = 550,149,651.58/28,467.96
  6. Step 6: Final answer
    x = 19,325.22

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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.