Home / 28,829.49-39,783.80-16,900.77

Finding the Fourth Proportional to 28,829.49, 39,783.80 and 16,900.77

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Solution

The fourth proportional to 28,829.49, 39,783.80 and 16,900.77 is: 23,322.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.49 : 39,783.80 = 16,900.77 : x
  2. Step 2: Convert to fraction form
    28,829.49/39,783.80 = 16,900.77/x
  3. Step 3: Cross multiply
    28,829.49x = 39,783.80 × 16,900.77
  4. Step 4: Simplify right side
    28,829.49x = 672,376,868.48
  5. Step 5: Solve for x
    x = 672,376,868.48/28,829.49
  6. Step 6: Final answer
    x = 23,322.54

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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.