Home / 57,271.21-85,886.22-19,821.12

Finding the Fourth Proportional to 57,271.21, 85,886.22 and 19,821.12

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Solution

The fourth proportional to 57,271.21, 85,886.22 and 19,821.12 is: 29,724.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,271.21 : 85,886.22 = 19,821.12 : x
  2. Step 2: Convert to fraction form
    57,271.21/85,886.22 = 19,821.12/x
  3. Step 3: Cross multiply
    57,271.21x = 85,886.22 × 19,821.12
  4. Step 4: Simplify right side
    57,271.21x = 1,702,361,072.97
  5. Step 5: Solve for x
    x = 1,702,361,072.97/57,271.21
  6. Step 6: Final answer
    x = 29,724.55

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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.