Home / 28,446.72-39,258.87-16,509.29

Finding the Fourth Proportional to 28,446.72, 39,258.87 and 16,509.29

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Solution

The fourth proportional to 28,446.72, 39,258.87 and 16,509.29 is: 22,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446.72 : 39,258.87 = 16,509.29 : x
  2. Step 2: Convert to fraction form
    28,446.72/39,258.87 = 16,509.29/x
  3. Step 3: Cross multiply
    28,446.72x = 39,258.87 × 16,509.29
  4. Step 4: Simplify right side
    28,446.72x = 648,135,975.77
  5. Step 5: Solve for x
    x = 648,135,975.77/28,446.72
  6. Step 6: Final answer
    x = 22,784.21

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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.