Home / 28,367.35-39,146.76-16,430.42

Finding the Fourth Proportional to 28,367.35, 39,146.76 and 16,430.42

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Solution

The fourth proportional to 28,367.35, 39,146.76 and 16,430.42 is: 22,673.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.35 : 39,146.76 = 16,430.42 : x
  2. Step 2: Convert to fraction form
    28,367.35/39,146.76 = 16,430.42/x
  3. Step 3: Cross multiply
    28,367.35x = 39,146.76 × 16,430.42
  4. Step 4: Simplify right side
    28,367.35x = 643,197,806.31
  5. Step 5: Solve for x
    x = 643,197,806.31/28,367.35
  6. Step 6: Final answer
    x = 22,673.88

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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.