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Finding the Fourth Proportional to 14,820.40, 22,230.60 and 13,135.60

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Solution

The fourth proportional to 14,820.40, 22,230.60 and 13,135.60 is: 19,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,820.40 : 22,230.60 = 13,135.60 : x
  2. Step 2: Convert to fraction form
    14,820.40/22,230.60 = 13,135.60/x
  3. Step 3: Cross multiply
    14,820.40x = 22,230.60 × 13,135.60
  4. Step 4: Simplify right side
    14,820.40x = 292,012,269.36
  5. Step 5: Solve for x
    x = 292,012,269.36/14,820.40
  6. Step 6: Final answer
    x = 19,703.40

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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.