Home / 14,741.92-20,328.57-11,385.28

Finding the Fourth Proportional to 14,741.92, 20,328.57 and 11,385.28

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Solution

The fourth proportional to 14,741.92, 20,328.57 and 11,385.28 is: 15,699.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,741.92 : 20,328.57 = 11,385.28 : x
  2. Step 2: Convert to fraction form
    14,741.92/20,328.57 = 11,385.28/x
  3. Step 3: Cross multiply
    14,741.92x = 20,328.57 × 11,385.28
  4. Step 4: Simplify right side
    14,741.92x = 231,446,461.45
  5. Step 5: Solve for x
    x = 231,446,461.45/14,741.92
  6. Step 6: Final answer
    x = 15,699.89

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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.