Home / 28,328.11-42,498.34-9,353.58

Finding the Fourth Proportional to 28,328.11, 42,498.34 and 9,353.58

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Solution

The fourth proportional to 28,328.11, 42,498.34 and 9,353.58 is: 14,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.11 : 42,498.34 = 9,353.58 : x
  2. Step 2: Convert to fraction form
    28,328.11/42,498.34 = 9,353.58/x
  3. Step 3: Cross multiply
    28,328.11x = 42,498.34 × 9,353.58
  4. Step 4: Simplify right side
    28,328.11x = 397,511,440.30
  5. Step 5: Solve for x
    x = 397,511,440.30/28,328.11
  6. Step 6: Final answer
    x = 14,032.40

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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.