Home / 18,969.68-26,150.94-14,929.50

Finding the Fourth Proportional to 18,969.68, 26,150.94 and 14,929.50

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Solution

The fourth proportional to 18,969.68, 26,150.94 and 14,929.50 is: 20,581.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969.68 : 26,150.94 = 14,929.50 : x
  2. Step 2: Convert to fraction form
    18,969.68/26,150.94 = 14,929.50/x
  3. Step 3: Cross multiply
    18,969.68x = 26,150.94 × 14,929.50
  4. Step 4: Simplify right side
    18,969.68x = 390,420,458.73
  5. Step 5: Solve for x
    x = 390,420,458.73/18,969.68
  6. Step 6: Final answer
    x = 20,581.29

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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.