Home / 43,825.54-65,686.40-20,113.10

Finding the Fourth Proportional to 43,825.54, 65,686.40 and 20,113.10

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Solution

The fourth proportional to 43,825.54, 65,686.40 and 20,113.10 is: 30,145.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,825.54 : 65,686.40 = 20,113.10 : x
  2. Step 2: Convert to fraction form
    43,825.54/65,686.40 = 20,113.10/x
  3. Step 3: Cross multiply
    43,825.54x = 65,686.40 × 20,113.10
  4. Step 4: Simplify right side
    43,825.54x = 1,321,156,702.84
  5. Step 5: Solve for x
    x = 1,321,156,702.84/43,825.54
  6. Step 6: Final answer
    x = 30,145.82

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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.