Home / 29,639.36-40,900.55-16,890.77

Finding the Fourth Proportional to 29,639.36, 40,900.55 and 16,890.77

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Solution

The fourth proportional to 29,639.36, 40,900.55 and 16,890.77 is: 23,308.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,639.36 : 40,900.55 = 16,890.77 : x
  2. Step 2: Convert to fraction form
    29,639.36/40,900.55 = 16,890.77/x
  3. Step 3: Cross multiply
    29,639.36x = 40,900.55 × 16,890.77
  4. Step 4: Simplify right side
    29,639.36x = 690,841,493.97
  5. Step 5: Solve for x
    x = 690,841,493.97/29,639.36
  6. Step 6: Final answer
    x = 23,308.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.