Home / 28,478.71-42,425.69-27,199.33

Finding the Fourth Proportional to 28,478.71, 42,425.69 and 27,199.33

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Solution

The fourth proportional to 28,478.71, 42,425.69 and 27,199.33 is: 40,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,478.71 : 42,425.69 = 27,199.33 : x
  2. Step 2: Convert to fraction form
    28,478.71/42,425.69 = 27,199.33/x
  3. Step 3: Cross multiply
    28,478.71x = 42,425.69 × 27,199.33
  4. Step 4: Simplify right side
    28,478.71x = 1,153,950,342.79
  5. Step 5: Solve for x
    x = 1,153,950,342.79/28,478.71
  6. Step 6: Final answer
    x = 40,519.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.