Home / 28,615.11-39,488.72-16,039.86

Finding the Fourth Proportional to 28,615.11, 39,488.72 and 16,039.86

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Solution

The fourth proportional to 28,615.11, 39,488.72 and 16,039.86 is: 22,134.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.11 : 39,488.72 = 16,039.86 : x
  2. Step 2: Convert to fraction form
    28,615.11/39,488.72 = 16,039.86/x
  3. Step 3: Cross multiply
    28,615.11x = 39,488.72 × 16,039.86
  4. Step 4: Simplify right side
    28,615.11x = 633,393,460.18
  5. Step 5: Solve for x
    x = 633,393,460.18/28,615.11
  6. Step 6: Final answer
    x = 22,134.93

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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.