Home / 17,378.08-23,981.77-9,420.30

Finding the Fourth Proportional to 17,378.08, 23,981.77 and 9,420.30

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Solution

The fourth proportional to 17,378.08, 23,981.77 and 9,420.30 is: 13,000.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,378.08 : 23,981.77 = 9,420.30 : x
  2. Step 2: Convert to fraction form
    17,378.08/23,981.77 = 9,420.30/x
  3. Step 3: Cross multiply
    17,378.08x = 23,981.77 × 9,420.30
  4. Step 4: Simplify right side
    17,378.08x = 225,915,467.93
  5. Step 5: Solve for x
    x = 225,915,467.93/17,378.08
  6. Step 6: Final answer
    x = 13,000.02

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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.