Home / 32,626.80-45,020.88-20,690.64

Finding the Fourth Proportional to 32,626.80, 45,020.88 and 20,690.64

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Solution

The fourth proportional to 32,626.80, 45,020.88 and 20,690.64 is: 28,550.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,626.80 : 45,020.88 = 20,690.64 : x
  2. Step 2: Convert to fraction form
    32,626.80/45,020.88 = 20,690.64/x
  3. Step 3: Cross multiply
    32,626.80x = 45,020.88 × 20,690.64
  4. Step 4: Simplify right side
    32,626.80x = 931,510,820.56
  5. Step 5: Solve for x
    x = 931,510,820.56/32,626.80
  6. Step 6: Final answer
    x = 28,550.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.