Home / 28,341.32-39,108.60-16,405.38

Finding the Fourth Proportional to 28,341.32, 39,108.60 and 16,405.38

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Solution

The fourth proportional to 28,341.32, 39,108.60 and 16,405.38 is: 22,638.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341.32 : 39,108.60 = 16,405.38 : x
  2. Step 2: Convert to fraction form
    28,341.32/39,108.60 = 16,405.38/x
  3. Step 3: Cross multiply
    28,341.32x = 39,108.60 × 16,405.38
  4. Step 4: Simplify right side
    28,341.32x = 641,591,444.27
  5. Step 5: Solve for x
    x = 641,591,444.27/28,341.32
  6. Step 6: Final answer
    x = 22,638.03

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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.