Home / 28,309.86-39,068.62-16,212.56

Finding the Fourth Proportional to 28,309.86, 39,068.62 and 16,212.56

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Solution

The fourth proportional to 28,309.86, 39,068.62 and 16,212.56 is: 22,373.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,309.86 : 39,068.62 = 16,212.56 : x
  2. Step 2: Convert to fraction form
    28,309.86/39,068.62 = 16,212.56/x
  3. Step 3: Cross multiply
    28,309.86x = 39,068.62 × 16,212.56
  4. Step 4: Simplify right side
    28,309.86x = 633,402,109.99
  5. Step 5: Solve for x
    x = 633,402,109.99/28,309.86
  6. Step 6: Final answer
    x = 22,373.90

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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.