Home / 20,741.02-28,622.58-11,309.59

Finding the Fourth Proportional to 20,741.02, 28,622.58 and 11,309.59

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Solution

The fourth proportional to 20,741.02, 28,622.58 and 11,309.59 is: 15,607.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.02 : 28,622.58 = 11,309.59 : x
  2. Step 2: Convert to fraction form
    20,741.02/28,622.58 = 11,309.59/x
  3. Step 3: Cross multiply
    20,741.02x = 28,622.58 × 11,309.59
  4. Step 4: Simplify right side
    20,741.02x = 323,709,644.54
  5. Step 5: Solve for x
    x = 323,709,644.54/20,741.02
  6. Step 6: Final answer
    x = 15,607.22

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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.