Home / 28,347.22-39,114.12-16,409.98

Finding the Fourth Proportional to 28,347.22, 39,114.12 and 16,409.98

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Solution

The fourth proportional to 28,347.22, 39,114.12 and 16,409.98 is: 22,642.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.22 : 39,114.12 = 16,409.98 : x
  2. Step 2: Convert to fraction form
    28,347.22/39,114.12 = 16,409.98/x
  3. Step 3: Cross multiply
    28,347.22x = 39,114.12 × 16,409.98
  4. Step 4: Simplify right side
    28,347.22x = 641,861,926.92
  5. Step 5: Solve for x
    x = 641,861,926.92/28,347.22
  6. Step 6: Final answer
    x = 22,642.85

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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.