Home / 40,642.04-60,961.88-12,558

Finding the Fourth Proportional to 40,642.04, 60,961.88 and 12,558

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Solution

The fourth proportional to 40,642.04, 60,961.88 and 12,558 is: 18,836.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,642.04 : 60,961.88 = 12,558 : x
  2. Step 2: Convert to fraction form
    40,642.04/60,961.88 = 12,558/x
  3. Step 3: Cross multiply
    40,642.04x = 60,961.88 × 12,558
  4. Step 4: Simplify right side
    40,642.04x = 765,559,226.25
  5. Step 5: Solve for x
    x = 765,559,226.25/40,642.04
  6. Step 6: Final answer
    x = 18,836.64

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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.