Home / 20,557.67-28,370.32-11,606.77

Finding the Fourth Proportional to 20,557.67, 28,370.32 and 11,606.77

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Solution

The fourth proportional to 20,557.67, 28,370.32 and 11,606.77 is: 16,017.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,557.67 : 28,370.32 = 11,606.77 : x
  2. Step 2: Convert to fraction form
    20,557.67/28,370.32 = 11,606.77/x
  3. Step 3: Cross multiply
    20,557.67x = 28,370.32 × 11,606.77
  4. Step 4: Simplify right side
    20,557.67x = 329,287,744.41
  5. Step 5: Solve for x
    x = 329,287,744.41/20,557.67
  6. Step 6: Final answer
    x = 16,017.75

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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.