Home / 28,403.85-39,194.10-16,464.72

Finding the Fourth Proportional to 28,403.85, 39,194.10 and 16,464.72

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Solution

The fourth proportional to 28,403.85, 39,194.10 and 16,464.72 is: 22,719.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,403.85 : 39,194.10 = 16,464.72 : x
  2. Step 2: Convert to fraction form
    28,403.85/39,194.10 = 16,464.72/x
  3. Step 3: Cross multiply
    28,403.85x = 39,194.10 × 16,464.72
  4. Step 4: Simplify right side
    28,403.85x = 645,319,882.15
  5. Step 5: Solve for x
    x = 645,319,882.15/28,403.85
  6. Step 6: Final answer
    x = 22,719.45

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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.