Home / 35,012.71-48,325.04-20,667.21

Finding the Fourth Proportional to 35,012.71, 48,325.04 and 20,667.21

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Solution

The fourth proportional to 35,012.71, 48,325.04 and 20,667.21 is: 28,525.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,012.71 : 48,325.04 = 20,667.21 : x
  2. Step 2: Convert to fraction form
    35,012.71/48,325.04 = 20,667.21/x
  3. Step 3: Cross multiply
    35,012.71x = 48,325.04 × 20,667.21
  4. Step 4: Simplify right side
    35,012.71x = 998,743,749.94
  5. Step 5: Solve for x
    x = 998,743,749.94/35,012.71
  6. Step 6: Final answer
    x = 28,525.18

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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.