Home / 28,190.08-42,275.40-9,467.20

Finding the Fourth Proportional to 28,190.08, 42,275.40 and 9,467.20

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Solution

The fourth proportional to 28,190.08, 42,275.40 and 9,467.20 is: 14,197.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190.08 : 42,275.40 = 9,467.20 : x
  2. Step 2: Convert to fraction form
    28,190.08/42,275.40 = 9,467.20/x
  3. Step 3: Cross multiply
    28,190.08x = 42,275.40 × 9,467.20
  4. Step 4: Simplify right side
    28,190.08x = 400,229,666.88
  5. Step 5: Solve for x
    x = 400,229,666.88/28,190.08
  6. Step 6: Final answer
    x = 14,197.54

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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.