Home / 69,030.66-103,546.17-20,999.70

Finding the Fourth Proportional to 69,030.66, 103,546.17 and 20,999.70

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Solution

The fourth proportional to 69,030.66, 103,546.17 and 20,999.70 is: 31,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,030.66 : 103,546.17 = 20,999.70 : x
  2. Step 2: Convert to fraction form
    69,030.66/103,546.17 = 20,999.70/x
  3. Step 3: Cross multiply
    69,030.66x = 103,546.17 × 20,999.70
  4. Step 4: Simplify right side
    69,030.66x = 2,174,438,506.15
  5. Step 5: Solve for x
    x = 2,174,438,506.15/69,030.66
  6. Step 6: Final answer
    x = 31,499.60

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1.5x scale

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.