Home / 20,883.63-31,325.65-16,718.21

Finding the Fourth Proportional to 20,883.63, 31,325.65 and 16,718.21

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Solution

The fourth proportional to 20,883.63, 31,325.65 and 16,718.21 is: 25,077.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.63 : 31,325.65 = 16,718.21 : x
  2. Step 2: Convert to fraction form
    20,883.63/31,325.65 = 16,718.21/x
  3. Step 3: Cross multiply
    20,883.63x = 31,325.65 × 16,718.21
  4. Step 4: Simplify right side
    20,883.63x = 523,708,596.66
  5. Step 5: Solve for x
    x = 523,708,596.66/20,883.63
  6. Step 6: Final answer
    x = 25,077.47

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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.