Home / 38,965.32-58,415.20-15,579

Finding the Fourth Proportional to 38,965.32, 58,415.20 and 15,579

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Solution

The fourth proportional to 38,965.32, 58,415.20 and 15,579 is: 23,355.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,965.32 : 58,415.20 = 15,579 : x
  2. Step 2: Convert to fraction form
    38,965.32/58,415.20 = 15,579/x
  3. Step 3: Cross multiply
    38,965.32x = 58,415.20 × 15,579
  4. Step 4: Simplify right side
    38,965.32x = 910,050,400.80
  5. Step 5: Solve for x
    x = 910,050,400.80/38,965.32
  6. Step 6: Final answer
    x = 23,355.39

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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.