Home / 38,907.84-58,371-12,612.60

Finding the Fourth Proportional to 38,907.84, 58,371 and 12,612.60

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Solution

The fourth proportional to 38,907.84, 58,371 and 12,612.60 is: 18,921.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,907.84 : 58,371 = 12,612.60 : x
  2. Step 2: Convert to fraction form
    38,907.84/58,371 = 12,612.60/x
  3. Step 3: Cross multiply
    38,907.84x = 58,371 × 12,612.60
  4. Step 4: Simplify right side
    38,907.84x = 736,210,074.60
  5. Step 5: Solve for x
    x = 736,210,074.60/38,907.84
  6. Step 6: Final answer
    x = 18,921.90

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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.