Home / 35,557.72-53,278.14-12,171.40

Finding the Fourth Proportional to 35,557.72, 53,278.14 and 12,171.40

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Solution

The fourth proportional to 35,557.72, 53,278.14 and 12,171.40 is: 18,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,557.72 : 53,278.14 = 12,171.40 : x
  2. Step 2: Convert to fraction form
    35,557.72/53,278.14 = 12,171.40/x
  3. Step 3: Cross multiply
    35,557.72x = 53,278.14 × 12,171.40
  4. Step 4: Simplify right side
    35,557.72x = 648,469,553.20
  5. Step 5: Solve for x
    x = 648,469,553.20/35,557.72
  6. Step 6: Final answer
    x = 18,237.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.