Home / 28,408.16-42,618.33-8,686.07

Finding the Fourth Proportional to 28,408.16, 42,618.33 and 8,686.07

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Solution

The fourth proportional to 28,408.16, 42,618.33 and 8,686.07 is: 13,030.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.16 : 42,618.33 = 8,686.07 : x
  2. Step 2: Convert to fraction form
    28,408.16/42,618.33 = 8,686.07/x
  3. Step 3: Cross multiply
    28,408.16x = 42,618.33 × 8,686.07
  4. Step 4: Simplify right side
    28,408.16x = 370,185,797.66
  5. Step 5: Solve for x
    x = 370,185,797.66/28,408.16
  6. Step 6: Final answer
    x = 13,030.97

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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.