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Finding the Fourth Proportional to 43,883.60, 65,809.20 and 14,302.40

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Solution

The fourth proportional to 43,883.60, 65,809.20 and 14,302.40 is: 21,448.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,883.60 : 65,809.20 = 14,302.40 : x
  2. Step 2: Convert to fraction form
    43,883.60/65,809.20 = 14,302.40/x
  3. Step 3: Cross multiply
    43,883.60x = 65,809.20 × 14,302.40
  4. Step 4: Simplify right side
    43,883.60x = 941,229,502.08
  5. Step 5: Solve for x
    x = 941,229,502.08/43,883.60
  6. Step 6: Final answer
    x = 21,448.32

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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.