Home / 18,981.95-26,218.33-14,223.17

Finding the Fourth Proportional to 18,981.95, 26,218.33 and 14,223.17

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Solution

The fourth proportional to 18,981.95, 26,218.33 and 14,223.17 is: 19,645.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981.95 : 26,218.33 = 14,223.17 : x
  2. Step 2: Convert to fraction form
    18,981.95/26,218.33 = 14,223.17/x
  3. Step 3: Cross multiply
    18,981.95x = 26,218.33 × 14,223.17
  4. Step 4: Simplify right side
    18,981.95x = 372,907,800.96
  5. Step 5: Solve for x
    x = 372,907,800.96/18,981.95
  6. Step 6: Final answer
    x = 19,645.39

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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.