Home / 28,742.60-39,661.98-16,167.08

Finding the Fourth Proportional to 28,742.60, 39,661.98 and 16,167.08

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Solution

The fourth proportional to 28,742.60, 39,661.98 and 16,167.08 is: 22,308.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.60 : 39,661.98 = 16,167.08 : x
  2. Step 2: Convert to fraction form
    28,742.60/39,661.98 = 16,167.08/x
  3. Step 3: Cross multiply
    28,742.60x = 39,661.98 × 16,167.08
  4. Step 4: Simplify right side
    28,742.60x = 641,218,403.62
  5. Step 5: Solve for x
    x = 641,218,403.62/28,742.60
  6. Step 6: Final answer
    x = 22,308.99

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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.