Home / 17,378.15-23,981.97-9,420.50

Finding the Fourth Proportional to 17,378.15, 23,981.97 and 9,420.50

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Solution

The fourth proportional to 17,378.15, 23,981.97 and 9,420.50 is: 13,000.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,378.15 : 23,981.97 = 9,420.50 : x
  2. Step 2: Convert to fraction form
    17,378.15/23,981.97 = 9,420.50/x
  3. Step 3: Cross multiply
    17,378.15x = 23,981.97 × 9,420.50
  4. Step 4: Simplify right side
    17,378.15x = 225,922,148.39
  5. Step 5: Solve for x
    x = 225,922,148.39/17,378.15
  6. Step 6: Final answer
    x = 13,000.36

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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.