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Finding the Fourth Proportional to 14,627.60, 21,941.40 and 13,648.40

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Solution

The fourth proportional to 14,627.60, 21,941.40 and 13,648.40 is: 20,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,627.60 : 21,941.40 = 13,648.40 : x
  2. Step 2: Convert to fraction form
    14,627.60/21,941.40 = 13,648.40/x
  3. Step 3: Cross multiply
    14,627.60x = 21,941.40 × 13,648.40
  4. Step 4: Simplify right side
    14,627.60x = 299,465,003.76
  5. Step 5: Solve for x
    x = 299,465,003.76/14,627.60
  6. Step 6: Final answer
    x = 20,472.60

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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.