Home / 55,017.37-82,531.65-18,989.14

Finding the Fourth Proportional to 55,017.37, 82,531.65 and 18,989.14

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Solution

The fourth proportional to 55,017.37, 82,531.65 and 18,989.14 is: 28,485.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,017.37 : 82,531.65 = 18,989.14 : x
  2. Step 2: Convert to fraction form
    55,017.37/82,531.65 = 18,989.14/x
  3. Step 3: Cross multiply
    55,017.37x = 82,531.65 × 18,989.14
  4. Step 4: Simplify right side
    55,017.37x = 1,567,204,849.95
  5. Step 5: Solve for x
    x = 1,567,204,849.95/55,017.37
  6. Step 6: Final answer
    x = 28,485.64

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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.