Home / 69,411.16-104,117.37-16,820.70

Finding the Fourth Proportional to 69,411.16, 104,117.37 and 16,820.70

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Solution

The fourth proportional to 69,411.16, 104,117.37 and 16,820.70 is: 25,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,411.16 : 104,117.37 = 16,820.70 : x
  2. Step 2: Convert to fraction form
    69,411.16/104,117.37 = 16,820.70/x
  3. Step 3: Cross multiply
    69,411.16x = 104,117.37 × 16,820.70
  4. Step 4: Simplify right side
    69,411.16x = 1,751,327,045.56
  5. Step 5: Solve for x
    x = 1,751,327,045.56/69,411.16
  6. Step 6: Final answer
    x = 25,231.20

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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.