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Finding the Fourth Proportional to 17,328.30, 25,992.45 and 8,580.30

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Solution

The fourth proportional to 17,328.30, 25,992.45 and 8,580.30 is: 12,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,328.30 : 25,992.45 = 8,580.30 : x
  2. Step 2: Convert to fraction form
    17,328.30/25,992.45 = 8,580.30/x
  3. Step 3: Cross multiply
    17,328.30x = 25,992.45 × 8,580.30
  4. Step 4: Simplify right side
    17,328.30x = 223,023,018.74
  5. Step 5: Solve for x
    x = 223,023,018.74/17,328.30
  6. Step 6: Final answer
    x = 12,870.45

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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.