Home / 28,829.38-39,783-16,253.32

Finding the Fourth Proportional to 28,829.38, 39,783 and 16,253.32

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Solution

The fourth proportional to 28,829.38, 39,783 and 16,253.32 is: 22,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.38 : 39,783 = 16,253.32 : x
  2. Step 2: Convert to fraction form
    28,829.38/39,783 = 16,253.32/x
  3. Step 3: Cross multiply
    28,829.38x = 39,783 × 16,253.32
  4. Step 4: Simplify right side
    28,829.38x = 646,605,829.56
  5. Step 5: Solve for x
    x = 646,605,829.56/28,829.38
  6. Step 6: Final answer
    x = 22,428.71

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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.