Home / 43,421.84-65,030.68-21,165.46

Finding the Fourth Proportional to 43,421.84, 65,030.68 and 21,165.46

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Solution

The fourth proportional to 43,421.84, 65,030.68 and 21,165.46 is: 31,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,421.84 : 65,030.68 = 21,165.46 : x
  2. Step 2: Convert to fraction form
    43,421.84/65,030.68 = 21,165.46/x
  3. Step 3: Cross multiply
    43,421.84x = 65,030.68 × 21,165.46
  4. Step 4: Simplify right side
    43,421.84x = 1,376,404,256.31
  5. Step 5: Solve for x
    x = 1,376,404,256.31/43,421.84
  6. Step 6: Final answer
    x = 31,698.43

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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.