Home / 20,562.38-28,376.09-11,130.94

Finding the Fourth Proportional to 20,562.38, 28,376.09 and 11,130.94

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Solution

The fourth proportional to 20,562.38, 28,376.09 and 11,130.94 is: 15,360.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.38 : 28,376.09 = 11,130.94 : x
  2. Step 2: Convert to fraction form
    20,562.38/28,376.09 = 11,130.94/x
  3. Step 3: Cross multiply
    20,562.38x = 28,376.09 × 11,130.94
  4. Step 4: Simplify right side
    20,562.38x = 315,852,555.22
  5. Step 5: Solve for x
    x = 315,852,555.22/20,562.38
  6. Step 6: Final answer
    x = 15,360.70

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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.