Home / 62,638.96-93,971.76-20,515.96

Finding the Fourth Proportional to 62,638.96, 93,971.76 and 20,515.96

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Solution

The fourth proportional to 62,638.96, 93,971.76 and 20,515.96 is: 30,778.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,638.96 : 93,971.76 = 20,515.96 : x
  2. Step 2: Convert to fraction form
    62,638.96/93,971.76 = 20,515.96/x
  3. Step 3: Cross multiply
    62,638.96x = 93,971.76 × 20,515.96
  4. Step 4: Simplify right side
    62,638.96x = 1,927,920,869.29
  5. Step 5: Solve for x
    x = 1,927,920,869.29/62,638.96
  6. Step 6: Final answer
    x = 30,778.30

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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.