Home / 20,512.34-30,656.10-14,977.34

Finding the Fourth Proportional to 20,512.34, 30,656.10 and 14,977.34

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Solution

The fourth proportional to 20,512.34, 30,656.10 and 14,977.34 is: 22,383.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.34 : 30,656.10 = 14,977.34 : x
  2. Step 2: Convert to fraction form
    20,512.34/30,656.10 = 14,977.34/x
  3. Step 3: Cross multiply
    20,512.34x = 30,656.10 × 14,977.34
  4. Step 4: Simplify right side
    20,512.34x = 459,146,757.89
  5. Step 5: Solve for x
    x = 459,146,757.89/20,512.34
  6. Step 6: Final answer
    x = 22,383.93

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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.