Home / 28,885.96-43,312.56-12,007.72

Finding the Fourth Proportional to 28,885.96, 43,312.56 and 12,007.72

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Solution

The fourth proportional to 28,885.96, 43,312.56 and 12,007.72 is: 18,004.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,885.96 : 43,312.56 = 12,007.72 : x
  2. Step 2: Convert to fraction form
    28,885.96/43,312.56 = 12,007.72/x
  3. Step 3: Cross multiply
    28,885.96x = 43,312.56 × 12,007.72
  4. Step 4: Simplify right side
    28,885.96x = 520,085,092.96
  5. Step 5: Solve for x
    x = 520,085,092.96/28,885.96
  6. Step 6: Final answer
    x = 18,004.77

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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.