Home / 28,534.20-42,836.40-18,004.20

Finding the Fourth Proportional to 28,534.20, 42,836.40 and 18,004.20

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Solution

The fourth proportional to 28,534.20, 42,836.40 and 18,004.20 is: 27,028.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,534.20 : 42,836.40 = 18,004.20 : x
  2. Step 2: Convert to fraction form
    28,534.20/42,836.40 = 18,004.20/x
  3. Step 3: Cross multiply
    28,534.20x = 42,836.40 × 18,004.20
  4. Step 4: Simplify right side
    28,534.20x = 771,235,112.88
  5. Step 5: Solve for x
    x = 771,235,112.88/28,534.20
  6. Step 6: Final answer
    x = 27,028.45

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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.