Home / 26,378.49-39,578.67-12,328.23

Finding the Fourth Proportional to 26,378.49, 39,578.67 and 12,328.23

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Solution

The fourth proportional to 26,378.49, 39,578.67 and 12,328.23 is: 18,497.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,378.49 : 39,578.67 = 12,328.23 : x
  2. Step 2: Convert to fraction form
    26,378.49/39,578.67 = 12,328.23/x
  3. Step 3: Cross multiply
    26,378.49x = 39,578.67 × 12,328.23
  4. Step 4: Simplify right side
    26,378.49x = 487,934,946.85
  5. Step 5: Solve for x
    x = 487,934,946.85/26,378.49
  6. Step 6: Final answer
    x = 18,497.46

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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.