Home / 28,173.84-38,877.48-15,595.44

Finding the Fourth Proportional to 28,173.84, 38,877.48 and 15,595.44

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Solution

The fourth proportional to 28,173.84, 38,877.48 and 15,595.44 is: 21,520.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.84 : 38,877.48 = 15,595.44 : x
  2. Step 2: Convert to fraction form
    28,173.84/38,877.48 = 15,595.44/x
  3. Step 3: Cross multiply
    28,173.84x = 38,877.48 × 15,595.44
  4. Step 4: Simplify right side
    28,173.84x = 606,311,406.69
  5. Step 5: Solve for x
    x = 606,311,406.69/28,173.84
  6. Step 6: Final answer
    x = 21,520.37

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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.