Home / 21,916.60-32,865.20-13,596.28

Finding the Fourth Proportional to 21,916.60, 32,865.20 and 13,596.28

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Solution

The fourth proportional to 21,916.60, 32,865.20 and 13,596.28 is: 20,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,916.60 : 32,865.20 = 13,596.28 : x
  2. Step 2: Convert to fraction form
    21,916.60/32,865.20 = 13,596.28/x
  3. Step 3: Cross multiply
    21,916.60x = 32,865.20 × 13,596.28
  4. Step 4: Simplify right side
    21,916.60x = 446,844,461.46
  5. Step 5: Solve for x
    x = 446,844,461.46/21,916.60
  6. Step 6: Final answer
    x = 20,388.40

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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.