Home / 43,263.79-64,890.21-13,684.61

Finding the Fourth Proportional to 43,263.79, 64,890.21 and 13,684.61

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Solution

The fourth proportional to 43,263.79, 64,890.21 and 13,684.61 is: 20,525.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,263.79 : 64,890.21 = 13,684.61 : x
  2. Step 2: Convert to fraction form
    43,263.79/64,890.21 = 13,684.61/x
  3. Step 3: Cross multiply
    43,263.79x = 64,890.21 × 13,684.61
  4. Step 4: Simplify right side
    43,263.79x = 887,997,430.21
  5. Step 5: Solve for x
    x = 887,997,430.21/43,263.79
  6. Step 6: Final answer
    x = 20,525.19

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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.