Home / 43,730.40-65,588.56-12,558.56

Finding the Fourth Proportional to 43,730.40, 65,588.56 and 12,558.56

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Solution

The fourth proportional to 43,730.40, 65,588.56 and 12,558.56 is: 18,835.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,730.40 : 65,588.56 = 12,558.56 : x
  2. Step 2: Convert to fraction form
    43,730.40/65,588.56 = 12,558.56/x
  3. Step 3: Cross multiply
    43,730.40x = 65,588.56 × 12,558.56
  4. Step 4: Simplify right side
    43,730.40x = 823,697,866.07
  5. Step 5: Solve for x
    x = 823,697,866.07/43,730.40
  6. Step 6: Final answer
    x = 18,835.82

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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.