Home / 20,916.28-28,853.58-16,941.88

Finding the Fourth Proportional to 20,916.28, 28,853.58 and 16,941.88

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Solution

The fourth proportional to 20,916.28, 28,853.58 and 16,941.88 is: 23,370.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916.28 : 28,853.58 = 16,941.88 : x
  2. Step 2: Convert to fraction form
    20,916.28/28,853.58 = 16,941.88/x
  3. Step 3: Cross multiply
    20,916.28x = 28,853.58 × 16,941.88
  4. Step 4: Simplify right side
    20,916.28x = 488,833,889.93
  5. Step 5: Solve for x
    x = 488,833,889.93/20,916.28
  6. Step 6: Final answer
    x = 23,370.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.