Home / 43,215.88-64,823.82-14,031.88

Finding the Fourth Proportional to 43,215.88, 64,823.82 and 14,031.88

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Solution

The fourth proportional to 43,215.88, 64,823.82 and 14,031.88 is: 21,047.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,215.88 : 64,823.82 = 14,031.88 : x
  2. Step 2: Convert to fraction form
    43,215.88/64,823.82 = 14,031.88/x
  3. Step 3: Cross multiply
    43,215.88x = 64,823.82 × 14,031.88
  4. Step 4: Simplify right side
    43,215.88x = 909,599,669.10
  5. Step 5: Solve for x
    x = 909,599,669.10/43,215.88
  6. Step 6: Final answer
    x = 21,047.81

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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.