Home / 20,717.15-28,588.67-11,763.46

Finding the Fourth Proportional to 20,717.15, 28,588.67 and 11,763.46

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Solution

The fourth proportional to 20,717.15, 28,588.67 and 11,763.46 is: 16,233.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717.15 : 28,588.67 = 11,763.46 : x
  2. Step 2: Convert to fraction form
    20,717.15/28,588.67 = 11,763.46/x
  3. Step 3: Cross multiply
    20,717.15x = 28,588.67 × 11,763.46
  4. Step 4: Simplify right side
    20,717.15x = 336,301,533.05
  5. Step 5: Solve for x
    x = 336,301,533.05/20,717.15
  6. Step 6: Final answer
    x = 16,233.01

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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.