Home / 28,189.44-38,900.16-16,254.88

Finding the Fourth Proportional to 28,189.44, 38,900.16 and 16,254.88

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Solution

The fourth proportional to 28,189.44, 38,900.16 and 16,254.88 is: 22,431.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189.44 : 38,900.16 = 16,254.88 : x
  2. Step 2: Convert to fraction form
    28,189.44/38,900.16 = 16,254.88/x
  3. Step 3: Cross multiply
    28,189.44x = 38,900.16 × 16,254.88
  4. Step 4: Simplify right side
    28,189.44x = 632,317,432.78
  5. Step 5: Solve for x
    x = 632,317,432.78/28,189.44
  6. Step 6: Final answer
    x = 22,431.00

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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.