Home / 29,137.96-43,670.28-12,478.30

Finding the Fourth Proportional to 29,137.96, 43,670.28 and 12,478.30

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Solution

The fourth proportional to 29,137.96, 43,670.28 and 12,478.30 is: 18,701.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,137.96 : 43,670.28 = 12,478.30 : x
  2. Step 2: Convert to fraction form
    29,137.96/43,670.28 = 12,478.30/x
  3. Step 3: Cross multiply
    29,137.96x = 43,670.28 × 12,478.30
  4. Step 4: Simplify right side
    29,137.96x = 544,930,854.92
  5. Step 5: Solve for x
    x = 544,930,854.92/29,137.96
  6. Step 6: Final answer
    x = 18,701.75

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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.