Home / 43,678.28-65,528.46-18,705.80

Finding the Fourth Proportional to 43,678.28, 65,528.46 and 18,705.80

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Solution

The fourth proportional to 43,678.28, 65,528.46 and 18,705.80 is: 28,063.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,678.28 : 65,528.46 = 18,705.80 : x
  2. Step 2: Convert to fraction form
    43,678.28/65,528.46 = 18,705.80/x
  3. Step 3: Cross multiply
    43,678.28x = 65,528.46 × 18,705.80
  4. Step 4: Simplify right side
    43,678.28x = 1,225,762,267.07
  5. Step 5: Solve for x
    x = 1,225,762,267.07/43,678.28
  6. Step 6: Final answer
    x = 28,063.43

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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.