Home / 28,403.46-42,605.31-8,681.94

Finding the Fourth Proportional to 28,403.46, 42,605.31 and 8,681.94

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Solution

The fourth proportional to 28,403.46, 42,605.31 and 8,681.94 is: 13,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,403.46 : 42,605.31 = 8,681.94 : x
  2. Step 2: Convert to fraction form
    28,403.46/42,605.31 = 8,681.94/x
  3. Step 3: Cross multiply
    28,403.46x = 42,605.31 × 8,681.94
  4. Step 4: Simplify right side
    28,403.46x = 369,896,745.10
  5. Step 5: Solve for x
    x = 369,896,745.10/28,403.46
  6. Step 6: Final answer
    x = 13,022.95

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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.