Home / 28,447.02-42,668.93-8,725.52

Finding the Fourth Proportional to 28,447.02, 42,668.93 and 8,725.52

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Solution

The fourth proportional to 28,447.02, 42,668.93 and 8,725.52 is: 13,087.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,447.02 : 42,668.93 = 8,725.52 : x
  2. Step 2: Convert to fraction form
    28,447.02/42,668.93 = 8,725.52/x
  3. Step 3: Cross multiply
    28,447.02x = 42,668.93 × 8,725.52
  4. Step 4: Simplify right side
    28,447.02x = 372,308,602.09
  5. Step 5: Solve for x
    x = 372,308,602.09/28,447.02
  6. Step 6: Final answer
    x = 13,087.79

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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.