Home / 45,286.02-67,907.16-18,983.70

Finding the Fourth Proportional to 45,286.02, 67,907.16 and 18,983.70

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Solution

The fourth proportional to 45,286.02, 67,907.16 and 18,983.70 is: 28,466.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,286.02 : 67,907.16 = 18,983.70 : x
  2. Step 2: Convert to fraction form
    45,286.02/67,907.16 = 18,983.70/x
  3. Step 3: Cross multiply
    45,286.02x = 67,907.16 × 18,983.70
  4. Step 4: Simplify right side
    45,286.02x = 1,289,129,153.29
  5. Step 5: Solve for x
    x = 1,289,129,153.29/45,286.02
  6. Step 6: Final answer
    x = 28,466.38

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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.