Home / 28,155.34-38,847.82-16,828.50

Finding the Fourth Proportional to 28,155.34, 38,847.82 and 16,828.50

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Solution

The fourth proportional to 28,155.34, 38,847.82 and 16,828.50 is: 23,219.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,155.34 : 38,847.82 = 16,828.50 : x
  2. Step 2: Convert to fraction form
    28,155.34/38,847.82 = 16,828.50/x
  3. Step 3: Cross multiply
    28,155.34x = 38,847.82 × 16,828.50
  4. Step 4: Simplify right side
    28,155.34x = 653,750,538.87
  5. Step 5: Solve for x
    x = 653,750,538.87/28,155.34
  6. Step 6: Final answer
    x = 23,219.42

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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.