Home / 28,289.13-39,042.09-16,190.72

Finding the Fourth Proportional to 28,289.13, 39,042.09 and 16,190.72

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Solution

The fourth proportional to 28,289.13, 39,042.09 and 16,190.72 is: 22,344.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.13 : 39,042.09 = 16,190.72 : x
  2. Step 2: Convert to fraction form
    28,289.13/39,042.09 = 16,190.72/x
  3. Step 3: Cross multiply
    28,289.13x = 39,042.09 × 16,190.72
  4. Step 4: Simplify right side
    28,289.13x = 632,119,352.19
  5. Step 5: Solve for x
    x = 632,119,352.19/28,289.13
  6. Step 6: Final answer
    x = 22,344.96

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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.