Home / 20,842.06-28,751.28-14,125.39

Finding the Fourth Proportional to 20,842.06, 28,751.28 and 14,125.39

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Solution

The fourth proportional to 20,842.06, 28,751.28 and 14,125.39 is: 19,485.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842.06 : 28,751.28 = 14,125.39 : x
  2. Step 2: Convert to fraction form
    20,842.06/28,751.28 = 14,125.39/x
  3. Step 3: Cross multiply
    20,842.06x = 28,751.28 × 14,125.39
  4. Step 4: Simplify right side
    20,842.06x = 406,123,043.00
  5. Step 5: Solve for x
    x = 406,123,043.00/20,842.06
  6. Step 6: Final answer
    x = 19,485.74

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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.