Home / 28,338.66-42,513.06-11,689.44

Finding the Fourth Proportional to 28,338.66, 42,513.06 and 11,689.44

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Solution

The fourth proportional to 28,338.66, 42,513.06 and 11,689.44 is: 17,536.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338.66 : 42,513.06 = 11,689.44 : x
  2. Step 2: Convert to fraction form
    28,338.66/42,513.06 = 11,689.44/x
  3. Step 3: Cross multiply
    28,338.66x = 42,513.06 × 11,689.44
  4. Step 4: Simplify right side
    28,338.66x = 496,953,864.09
  5. Step 5: Solve for x
    x = 496,953,864.09/28,338.66
  6. Step 6: Final answer
    x = 17,536.25

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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.