Home / 23,020.34-31,768.38-13,588.89

Finding the Fourth Proportional to 23,020.34, 31,768.38 and 13,588.89

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Solution

The fourth proportional to 23,020.34, 31,768.38 and 13,588.89 is: 18,752.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,020.34 : 31,768.38 = 13,588.89 : x
  2. Step 2: Convert to fraction form
    23,020.34/31,768.38 = 13,588.89/x
  3. Step 3: Cross multiply
    23,020.34x = 31,768.38 × 13,588.89
  4. Step 4: Simplify right side
    23,020.34x = 431,697,021.30
  5. Step 5: Solve for x
    x = 431,697,021.30/23,020.34
  6. Step 6: Final answer
    x = 18,752.86

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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.