Home / 54,012.81-81,027.32-18,946.29

Finding the Fourth Proportional to 54,012.81, 81,027.32 and 18,946.29

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Solution

The fourth proportional to 54,012.81, 81,027.32 and 18,946.29 is: 28,422.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,012.81 : 81,027.32 = 18,946.29 : x
  2. Step 2: Convert to fraction form
    54,012.81/81,027.32 = 18,946.29/x
  3. Step 3: Cross multiply
    54,012.81x = 81,027.32 × 18,946.29
  4. Step 4: Simplify right side
    54,012.81x = 1,535,167,007.91
  5. Step 5: Solve for x
    x = 1,535,167,007.91/54,012.81
  6. Step 6: Final answer
    x = 28,422.28

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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.