Home / 28,926.40-43,393.65-12,286.30

Finding the Fourth Proportional to 28,926.40, 43,393.65 and 12,286.30

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Solution

The fourth proportional to 28,926.40, 43,393.65 and 12,286.30 is: 18,431.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.40 : 43,393.65 = 12,286.30 : x
  2. Step 2: Convert to fraction form
    28,926.40/43,393.65 = 12,286.30/x
  3. Step 3: Cross multiply
    28,926.40x = 43,393.65 × 12,286.30
  4. Step 4: Simplify right side
    28,926.40x = 533,147,402.00
  5. Step 5: Solve for x
    x = 533,147,402.00/28,926.40
  6. Step 6: Final answer
    x = 18,431.17

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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.