Home / 28,900.53-43,315.35-16,431

Finding the Fourth Proportional to 28,900.53, 43,315.35 and 16,431

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Solution

The fourth proportional to 28,900.53, 43,315.35 and 16,431 is: 24,626.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.53 : 43,315.35 = 16,431 : x
  2. Step 2: Convert to fraction form
    28,900.53/43,315.35 = 16,431/x
  3. Step 3: Cross multiply
    28,900.53x = 43,315.35 × 16,431
  4. Step 4: Simplify right side
    28,900.53x = 711,714,515.85
  5. Step 5: Solve for x
    x = 711,714,515.85/28,900.53
  6. Step 6: Final answer
    x = 24,626.35

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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.