Home / 28,747.59-39,671.64-16,808.55

Finding the Fourth Proportional to 28,747.59, 39,671.64 and 16,808.55

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Solution

The fourth proportional to 28,747.59, 39,671.64 and 16,808.55 is: 23,195.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.59 : 39,671.64 = 16,808.55 : x
  2. Step 2: Convert to fraction form
    28,747.59/39,671.64 = 16,808.55/x
  3. Step 3: Cross multiply
    28,747.59x = 39,671.64 × 16,808.55
  4. Step 4: Simplify right side
    28,747.59x = 666,822,744.52
  5. Step 5: Solve for x
    x = 666,822,744.52/28,747.59
  6. Step 6: Final answer
    x = 23,195.78

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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.