Home / 43,215.50-64,823.25-14,031.50

Finding the Fourth Proportional to 43,215.50, 64,823.25 and 14,031.50

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Solution

The fourth proportional to 43,215.50, 64,823.25 and 14,031.50 is: 21,047.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,215.50 : 64,823.25 = 14,031.50 : x
  2. Step 2: Convert to fraction form
    43,215.50/64,823.25 = 14,031.50/x
  3. Step 3: Cross multiply
    43,215.50x = 64,823.25 × 14,031.50
  4. Step 4: Simplify right side
    43,215.50x = 909,567,432.38
  5. Step 5: Solve for x
    x = 909,567,432.38/43,215.50
  6. Step 6: Final answer
    x = 21,047.25

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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.