Home / 28,749.45-39,668.25-16,810.47

Finding the Fourth Proportional to 28,749.45, 39,668.25 and 16,810.47

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Solution

The fourth proportional to 28,749.45, 39,668.25 and 16,810.47 is: 23,194.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.45 : 39,668.25 = 16,810.47 : x
  2. Step 2: Convert to fraction form
    28,749.45/39,668.25 = 16,810.47/x
  3. Step 3: Cross multiply
    28,749.45x = 39,668.25 × 16,810.47
  4. Step 4: Simplify right side
    28,749.45x = 666,841,926.58
  5. Step 5: Solve for x
    x = 666,841,926.58/28,749.45
  6. Step 6: Final answer
    x = 23,194.95

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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.