Home / 43,440.72-65,153.40-12,275.28

Finding the Fourth Proportional to 43,440.72, 65,153.40 and 12,275.28

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Solution

The fourth proportional to 43,440.72, 65,153.40 and 12,275.28 is: 18,410.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,440.72 : 65,153.40 = 12,275.28 : x
  2. Step 2: Convert to fraction form
    43,440.72/65,153.40 = 12,275.28/x
  3. Step 3: Cross multiply
    43,440.72x = 65,153.40 × 12,275.28
  4. Step 4: Simplify right side
    43,440.72x = 799,776,227.95
  5. Step 5: Solve for x
    x = 799,776,227.95/43,440.72
  6. Step 6: Final answer
    x = 18,410.75

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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.