Home / 28,877.07-39,846.13-16,128.69

Finding the Fourth Proportional to 28,877.07, 39,846.13 and 16,128.69

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Solution

The fourth proportional to 28,877.07, 39,846.13 and 16,128.69 is: 22,255.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.07 : 39,846.13 = 16,128.69 : x
  2. Step 2: Convert to fraction form
    28,877.07/39,846.13 = 16,128.69/x
  3. Step 3: Cross multiply
    28,877.07x = 39,846.13 × 16,128.69
  4. Step 4: Simplify right side
    28,877.07x = 642,665,688.72
  5. Step 5: Solve for x
    x = 642,665,688.72/28,877.07
  6. Step 6: Final answer
    x = 22,255.22

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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.