Home / 28,246.47-38,983.58-16,309.78

Finding the Fourth Proportional to 28,246.47, 38,983.58 and 16,309.78

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Solution

The fourth proportional to 28,246.47, 38,983.58 and 16,309.78 is: 22,509.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.47 : 38,983.58 = 16,309.78 : x
  2. Step 2: Convert to fraction form
    28,246.47/38,983.58 = 16,309.78/x
  3. Step 3: Cross multiply
    28,246.47x = 38,983.58 × 16,309.78
  4. Step 4: Simplify right side
    28,246.47x = 635,813,418.49
  5. Step 5: Solve for x
    x = 635,813,418.49/28,246.47
  6. Step 6: Final answer
    x = 22,509.49

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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.