Home / 28,339.07-39,105.50-16,403.13

Finding the Fourth Proportional to 28,339.07, 39,105.50 and 16,403.13

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Solution

The fourth proportional to 28,339.07, 39,105.50 and 16,403.13 is: 22,634.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,339.07 : 39,105.50 = 16,403.13 : x
  2. Step 2: Convert to fraction form
    28,339.07/39,105.50 = 16,403.13/x
  3. Step 3: Cross multiply
    28,339.07x = 39,105.50 × 16,403.13
  4. Step 4: Simplify right side
    28,339.07x = 641,452,518.20
  5. Step 5: Solve for x
    x = 641,452,518.20/28,339.07
  6. Step 6: Final answer
    x = 22,634.92

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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.