Home / 28,615.74-39,489.59-16,040.49

Finding the Fourth Proportional to 28,615.74, 39,489.59 and 16,040.49

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Solution

The fourth proportional to 28,615.74, 39,489.59 and 16,040.49 is: 22,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.74 : 39,489.59 = 16,040.49 : x
  2. Step 2: Convert to fraction form
    28,615.74/39,489.59 = 16,040.49/x
  3. Step 3: Cross multiply
    28,615.74x = 39,489.59 × 16,040.49
  4. Step 4: Simplify right side
    28,615.74x = 633,432,176.05
  5. Step 5: Solve for x
    x = 633,432,176.05/28,615.74
  6. Step 6: Final answer
    x = 22,135.80

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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.