Home / 14,645.76-21,990.50-14,427.06

Finding the Fourth Proportional to 14,645.76, 21,990.50 and 14,427.06

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Solution

The fourth proportional to 14,645.76, 21,990.50 and 14,427.06 is: 21,662.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,645.76 : 21,990.50 = 14,427.06 : x
  2. Step 2: Convert to fraction form
    14,645.76/21,990.50 = 14,427.06/x
  3. Step 3: Cross multiply
    14,645.76x = 21,990.50 × 14,427.06
  4. Step 4: Simplify right side
    14,645.76x = 317,258,262.93
  5. Step 5: Solve for x
    x = 317,258,262.93/14,645.76
  6. Step 6: Final answer
    x = 21,662.12

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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.