Home / 28,209.96-42,309.61-14,166.23

Finding the Fourth Proportional to 28,209.96, 42,309.61 and 14,166.23

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Solution

The fourth proportional to 28,209.96, 42,309.61 and 14,166.23 is: 21,246.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.96 : 42,309.61 = 14,166.23 : x
  2. Step 2: Convert to fraction form
    28,209.96/42,309.61 = 14,166.23/x
  3. Step 3: Cross multiply
    28,209.96x = 42,309.61 × 14,166.23
  4. Step 4: Simplify right side
    28,209.96x = 599,367,419.51
  5. Step 5: Solve for x
    x = 599,367,419.51/28,209.96
  6. Step 6: Final answer
    x = 21,246.66

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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.