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Finding the Fourth Proportional to 14,529.60, 21,009.60 and 14,529.60

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Solution

The fourth proportional to 14,529.60, 21,009.60 and 14,529.60 is: 21,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,529.60 : 21,009.60 = 14,529.60 : x
  2. Step 2: Convert to fraction form
    14,529.60/21,009.60 = 14,529.60/x
  3. Step 3: Cross multiply
    14,529.60x = 21,009.60 × 14,529.60
  4. Step 4: Simplify right side
    14,529.60x = 305,261,084.16
  5. Step 5: Solve for x
    x = 305,261,084.16/14,529.60
  6. Step 6: Final answer
    x = 21,009.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.