Home / 20,635.14-28,477.08-11,204.32

Finding the Fourth Proportional to 20,635.14, 28,477.08 and 11,204.32

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Solution

The fourth proportional to 20,635.14, 28,477.08 and 11,204.32 is: 15,462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.14 : 28,477.08 = 11,204.32 : x
  2. Step 2: Convert to fraction form
    20,635.14/28,477.08 = 11,204.32/x
  3. Step 3: Cross multiply
    20,635.14x = 28,477.08 × 11,204.32
  4. Step 4: Simplify right side
    20,635.14x = 319,066,316.99
  5. Step 5: Solve for x
    x = 319,066,316.99/20,635.14
  6. Step 6: Final answer
    x = 15,462.28

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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.