Home / 28,885.88-43,335.30-9,165.08

Finding the Fourth Proportional to 28,885.88, 43,335.30 and 9,165.08

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Solution

The fourth proportional to 28,885.88, 43,335.30 and 9,165.08 is: 13,749.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,885.88 : 43,335.30 = 9,165.08 : x
  2. Step 2: Convert to fraction form
    28,885.88/43,335.30 = 9,165.08/x
  3. Step 3: Cross multiply
    28,885.88x = 43,335.30 × 9,165.08
  4. Step 4: Simplify right side
    28,885.88x = 397,171,491.32
  5. Step 5: Solve for x
    x = 397,171,491.32/28,885.88
  6. Step 6: Final answer
    x = 13,749.68

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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.