Home / 28,424.57-39,225.51-16,489.94

Finding the Fourth Proportional to 28,424.57, 39,225.51 and 16,489.94

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Solution

The fourth proportional to 28,424.57, 39,225.51 and 16,489.94 is: 22,755.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424.57 : 39,225.51 = 16,489.94 : x
  2. Step 2: Convert to fraction form
    28,424.57/39,225.51 = 16,489.94/x
  3. Step 3: Cross multiply
    28,424.57x = 39,225.51 × 16,489.94
  4. Step 4: Simplify right side
    28,424.57x = 646,826,110.24
  5. Step 5: Solve for x
    x = 646,826,110.24/28,424.57
  6. Step 6: Final answer
    x = 22,755.88

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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.