Home / 18,954.95-28,427.54-5,624.80

Finding the Fourth Proportional to 18,954.95, 28,427.54 and 5,624.80

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Solution

The fourth proportional to 18,954.95, 28,427.54 and 5,624.80 is: 8,435.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.95 : 28,427.54 = 5,624.80 : x
  2. Step 2: Convert to fraction form
    18,954.95/28,427.54 = 5,624.80/x
  3. Step 3: Cross multiply
    18,954.95x = 28,427.54 × 5,624.80
  4. Step 4: Simplify right side
    18,954.95x = 159,899,127.80
  5. Step 5: Solve for x
    x = 159,899,127.80/18,954.95
  6. Step 6: Final answer
    x = 8,435.75

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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.