Home / 43,580.16-65,370.24-12,415.50

Finding the Fourth Proportional to 43,580.16, 65,370.24 and 12,415.50

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Solution

The fourth proportional to 43,580.16, 65,370.24 and 12,415.50 is: 18,623.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,580.16 : 65,370.24 = 12,415.50 : x
  2. Step 2: Convert to fraction form
    43,580.16/65,370.24 = 12,415.50/x
  3. Step 3: Cross multiply
    43,580.16x = 65,370.24 × 12,415.50
  4. Step 4: Simplify right side
    43,580.16x = 811,604,214.72
  5. Step 5: Solve for x
    x = 811,604,214.72/43,580.16
  6. Step 6: Final answer
    x = 18,623.25

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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.