Home / 28,682.12-43,008.40-12,873.60

Finding the Fourth Proportional to 28,682.12, 43,008.40 and 12,873.60

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Solution

The fourth proportional to 28,682.12, 43,008.40 and 12,873.60 is: 19,303.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,682.12 : 43,008.40 = 12,873.60 : x
  2. Step 2: Convert to fraction form
    28,682.12/43,008.40 = 12,873.60/x
  3. Step 3: Cross multiply
    28,682.12x = 43,008.40 × 12,873.60
  4. Step 4: Simplify right side
    28,682.12x = 553,672,772.89
  5. Step 5: Solve for x
    x = 553,672,772.89/28,682.12
  6. Step 6: Final answer
    x = 19,303.76

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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.