Home / 28,374.75-39,158.37-15,799.50

Finding the Fourth Proportional to 28,374.75, 39,158.37 and 15,799.50

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Solution

The fourth proportional to 28,374.75, 39,158.37 and 15,799.50 is: 21,803.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.75 : 39,158.37 = 15,799.50 : x
  2. Step 2: Convert to fraction form
    28,374.75/39,158.37 = 15,799.50/x
  3. Step 3: Cross multiply
    28,374.75x = 39,158.37 × 15,799.50
  4. Step 4: Simplify right side
    28,374.75x = 618,682,666.82
  5. Step 5: Solve for x
    x = 618,682,666.82/28,374.75
  6. Step 6: Final answer
    x = 21,803.99

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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.