Home / 20,594.54-28,420.34-11,643.64

Finding the Fourth Proportional to 20,594.54, 28,420.34 and 11,643.64

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Solution

The fourth proportional to 20,594.54, 28,420.34 and 11,643.64 is: 16,068.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.54 : 28,420.34 = 11,643.64 : x
  2. Step 2: Convert to fraction form
    20,594.54/28,420.34 = 11,643.64/x
  3. Step 3: Cross multiply
    20,594.54x = 28,420.34 × 11,643.64
  4. Step 4: Simplify right side
    20,594.54x = 330,916,078.37
  5. Step 5: Solve for x
    x = 330,916,078.37/20,594.54
  6. Step 6: Final answer
    x = 16,068.14

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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.