Home / 28,924.78-43,391.40-12,284.80

Finding the Fourth Proportional to 28,924.78, 43,391.40 and 12,284.80

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Solution

The fourth proportional to 28,924.78, 43,391.40 and 12,284.80 is: 18,429.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,924.78 : 43,391.40 = 12,284.80 : x
  2. Step 2: Convert to fraction form
    28,924.78/43,391.40 = 12,284.80/x
  3. Step 3: Cross multiply
    28,924.78x = 43,391.40 × 12,284.80
  4. Step 4: Simplify right side
    28,924.78x = 533,054,670.72
  5. Step 5: Solve for x
    x = 533,054,670.72/28,924.78
  6. Step 6: Final answer
    x = 18,429.00

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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.