Home / 54,215.10-81,307.01-18,674.98

Finding the Fourth Proportional to 54,215.10, 81,307.01 and 18,674.98

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Solution

The fourth proportional to 54,215.10, 81,307.01 and 18,674.98 is: 28,007.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,215.10 : 81,307.01 = 18,674.98 : x
  2. Step 2: Convert to fraction form
    54,215.10/81,307.01 = 18,674.98/x
  3. Step 3: Cross multiply
    54,215.10x = 81,307.01 × 18,674.98
  4. Step 4: Simplify right side
    54,215.10x = 1,518,406,629.03
  5. Step 5: Solve for x
    x = 1,518,406,629.03/54,215.10
  6. Step 6: Final answer
    x = 28,007.08

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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.