Home / 43,684.18-65,415.09-28,870.90

Finding the Fourth Proportional to 43,684.18, 65,415.09 and 28,870.90

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Solution

The fourth proportional to 43,684.18, 65,415.09 and 28,870.90 is: 43,232.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,684.18 : 65,415.09 = 28,870.90 : x
  2. Step 2: Convert to fraction form
    43,684.18/65,415.09 = 28,870.90/x
  3. Step 3: Cross multiply
    43,684.18x = 65,415.09 × 28,870.90
  4. Step 4: Simplify right side
    43,684.18x = 1,888,592,521.88
  5. Step 5: Solve for x
    x = 1,888,592,521.88/43,684.18
  6. Step 6: Final answer
    x = 43,232.87

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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.