Home / 43,534.80-65,302.20-21,362.40

Finding the Fourth Proportional to 43,534.80, 65,302.20 and 21,362.40

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Solution

The fourth proportional to 43,534.80, 65,302.20 and 21,362.40 is: 32,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,534.80 : 65,302.20 = 21,362.40 : x
  2. Step 2: Convert to fraction form
    43,534.80/65,302.20 = 21,362.40/x
  3. Step 3: Cross multiply
    43,534.80x = 65,302.20 × 21,362.40
  4. Step 4: Simplify right side
    43,534.80x = 1,395,011,717.28
  5. Step 5: Solve for x
    x = 1,395,011,717.28/43,534.80
  6. Step 6: Final answer
    x = 32,043.60

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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.