Home / 31,139.23-46,709.02-7,765.67

Finding the Fourth Proportional to 31,139.23, 46,709.02 and 7,765.67

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Solution

The fourth proportional to 31,139.23, 46,709.02 and 7,765.67 is: 11,648.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,139.23 : 46,709.02 = 7,765.67 : x
  2. Step 2: Convert to fraction form
    31,139.23/46,709.02 = 7,765.67/x
  3. Step 3: Cross multiply
    31,139.23x = 46,709.02 × 7,765.67
  4. Step 4: Simplify right side
    31,139.23x = 362,726,582.38
  5. Step 5: Solve for x
    x = 362,726,582.38/31,139.23
  6. Step 6: Final answer
    x = 11,648.54

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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.