Home / 20,579.36-30,886.32-16,501.28

Finding the Fourth Proportional to 20,579.36, 30,886.32 and 16,501.28

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Solution

The fourth proportional to 20,579.36, 30,886.32 and 16,501.28 is: 24,765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.36 : 30,886.32 = 16,501.28 : x
  2. Step 2: Convert to fraction form
    20,579.36/30,886.32 = 16,501.28/x
  3. Step 3: Cross multiply
    20,579.36x = 30,886.32 × 16,501.28
  4. Step 4: Simplify right side
    20,579.36x = 509,663,814.49
  5. Step 5: Solve for x
    x = 509,663,814.49/20,579.36
  6. Step 6: Final answer
    x = 24,765.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.