Home / 22,678.56-31,302.60-14,720.34

Finding the Fourth Proportional to 22,678.56, 31,302.60 and 14,720.34

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Solution

The fourth proportional to 22,678.56, 31,302.60 and 14,720.34 is: 20,318.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,678.56 : 31,302.60 = 14,720.34 : x
  2. Step 2: Convert to fraction form
    22,678.56/31,302.60 = 14,720.34/x
  3. Step 3: Cross multiply
    22,678.56x = 31,302.60 × 14,720.34
  4. Step 4: Simplify right side
    22,678.56x = 460,784,914.88
  5. Step 5: Solve for x
    x = 460,784,914.88/22,678.56
  6. Step 6: Final answer
    x = 20,318.09

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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.