Home / 28,890.06-39,869.19-16,315.62

Finding the Fourth Proportional to 28,890.06, 39,869.19 and 16,315.62

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Solution

The fourth proportional to 28,890.06, 39,869.19 and 16,315.62 is: 22,516.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890.06 : 39,869.19 = 16,315.62 : x
  2. Step 2: Convert to fraction form
    28,890.06/39,869.19 = 16,315.62/x
  3. Step 3: Cross multiply
    28,890.06x = 39,869.19 × 16,315.62
  4. Step 4: Simplify right side
    28,890.06x = 650,490,553.75
  5. Step 5: Solve for x
    x = 650,490,553.75/28,890.06
  6. Step 6: Final answer
    x = 22,516.07

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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.