Home / 18,887.16-28,222.71-13,596.60

Finding the Fourth Proportional to 18,887.16, 28,222.71 and 13,596.60

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Solution

The fourth proportional to 18,887.16, 28,222.71 and 13,596.60 is: 20,317.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887.16 : 28,222.71 = 13,596.60 : x
  2. Step 2: Convert to fraction form
    18,887.16/28,222.71 = 13,596.60/x
  3. Step 3: Cross multiply
    18,887.16x = 28,222.71 × 13,596.60
  4. Step 4: Simplify right side
    18,887.16x = 383,732,898.79
  5. Step 5: Solve for x
    x = 383,732,898.79/18,887.16
  6. Step 6: Final answer
    x = 20,317.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.