Home / 28,914.63-39,913.20-18,845.52

Finding the Fourth Proportional to 28,914.63, 39,913.20 and 18,845.52

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Solution

The fourth proportional to 28,914.63, 39,913.20 and 18,845.52 is: 26,013.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.63 : 39,913.20 = 18,845.52 : x
  2. Step 2: Convert to fraction form
    28,914.63/39,913.20 = 18,845.52/x
  3. Step 3: Cross multiply
    28,914.63x = 39,913.20 × 18,845.52
  4. Step 4: Simplify right side
    28,914.63x = 752,185,008.86
  5. Step 5: Solve for x
    x = 752,185,008.86/28,914.63
  6. Step 6: Final answer
    x = 26,013.99

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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.