Home / 20,608.41-28,443.86-11,656.29

Finding the Fourth Proportional to 20,608.41, 28,443.86 and 11,656.29

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Solution

The fourth proportional to 20,608.41, 28,443.86 and 11,656.29 is: 16,088.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.41 : 28,443.86 = 11,656.29 : x
  2. Step 2: Convert to fraction form
    20,608.41/28,443.86 = 11,656.29/x
  3. Step 3: Cross multiply
    20,608.41x = 28,443.86 × 11,656.29
  4. Step 4: Simplify right side
    20,608.41x = 331,549,822.60
  5. Step 5: Solve for x
    x = 331,549,822.60/20,608.41
  6. Step 6: Final answer
    x = 16,088.08

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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.