Home / 28,178.36-42,282.08-12,394.44

Finding the Fourth Proportional to 28,178.36, 42,282.08 and 12,394.44

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Solution

The fourth proportional to 28,178.36, 42,282.08 and 12,394.44 is: 18,598.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,178.36 : 42,282.08 = 12,394.44 : x
  2. Step 2: Convert to fraction form
    28,178.36/42,282.08 = 12,394.44/x
  3. Step 3: Cross multiply
    28,178.36x = 42,282.08 × 12,394.44
  4. Step 4: Simplify right side
    28,178.36x = 524,062,703.64
  5. Step 5: Solve for x
    x = 524,062,703.64/28,178.36
  6. Step 6: Final answer
    x = 18,598.06

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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.