Home / 28,353.86-39,117.78-28,310.12

Finding the Fourth Proportional to 28,353.86, 39,117.78 and 28,310.12

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Solution

The fourth proportional to 28,353.86, 39,117.78 and 28,310.12 is: 39,057.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,353.86 : 39,117.78 = 28,310.12 : x
  2. Step 2: Convert to fraction form
    28,353.86/39,117.78 = 28,310.12/x
  3. Step 3: Cross multiply
    28,353.86x = 39,117.78 × 28,310.12
  4. Step 4: Simplify right side
    28,353.86x = 1,107,428,850.34
  5. Step 5: Solve for x
    x = 1,107,428,850.34/28,353.86
  6. Step 6: Final answer
    x = 39,057.44

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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.