Home / 20,428.04-28,190.06-11,476.52

Finding the Fourth Proportional to 20,428.04, 28,190.06 and 11,476.52

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Solution

The fourth proportional to 20,428.04, 28,190.06 and 11,476.52 is: 15,837.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,428.04 : 28,190.06 = 11,476.52 : x
  2. Step 2: Convert to fraction form
    20,428.04/28,190.06 = 11,476.52/x
  3. Step 3: Cross multiply
    20,428.04x = 28,190.06 × 11,476.52
  4. Step 4: Simplify right side
    20,428.04x = 323,523,787.39
  5. Step 5: Solve for x
    x = 323,523,787.39/20,428.04
  6. Step 6: Final answer
    x = 15,837.24

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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.