Home / 34,987.95-52,450.20-12,785.67

Finding the Fourth Proportional to 34,987.95, 52,450.20 and 12,785.67

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Solution

The fourth proportional to 34,987.95, 52,450.20 and 12,785.67 is: 19,166.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,987.95 : 52,450.20 = 12,785.67 : x
  2. Step 2: Convert to fraction form
    34,987.95/52,450.20 = 12,785.67/x
  3. Step 3: Cross multiply
    34,987.95x = 52,450.20 × 12,785.67
  4. Step 4: Simplify right side
    34,987.95x = 670,610,948.63
  5. Step 5: Solve for x
    x = 670,610,948.63/34,987.95
  6. Step 6: Final answer
    x = 19,166.91

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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.