Home / 54,003.72-81,005.46-18,953.40

Finding the Fourth Proportional to 54,003.72, 81,005.46 and 18,953.40

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Solution

The fourth proportional to 54,003.72, 81,005.46 and 18,953.40 is: 28,430.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,003.72 : 81,005.46 = 18,953.40 : x
  2. Step 2: Convert to fraction form
    54,003.72/81,005.46 = 18,953.40/x
  3. Step 3: Cross multiply
    54,003.72x = 81,005.46 × 18,953.40
  4. Step 4: Simplify right side
    54,003.72x = 1,535,328,885.56
  5. Step 5: Solve for x
    x = 1,535,328,885.56/54,003.72
  6. Step 6: Final answer
    x = 28,430.06

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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.