Home / 20,589.56-28,411.32-11,637.06

Finding the Fourth Proportional to 20,589.56, 28,411.32 and 11,637.06

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Solution

The fourth proportional to 20,589.56, 28,411.32 and 11,637.06 is: 16,057.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.56 : 28,411.32 = 11,637.06 : x
  2. Step 2: Convert to fraction form
    20,589.56/28,411.32 = 11,637.06/x
  3. Step 3: Cross multiply
    20,589.56x = 28,411.32 × 11,637.06
  4. Step 4: Simplify right side
    20,589.56x = 330,624,235.52
  5. Step 5: Solve for x
    x = 330,624,235.52/20,589.56
  6. Step 6: Final answer
    x = 16,057.86

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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.