Home / 28,653.39-42,929.24-11,976.66

Finding the Fourth Proportional to 28,653.39, 42,929.24 and 11,976.66

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Solution

The fourth proportional to 28,653.39, 42,929.24 and 11,976.66 is: 17,943.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,653.39 : 42,929.24 = 11,976.66 : x
  2. Step 2: Convert to fraction form
    28,653.39/42,929.24 = 11,976.66/x
  3. Step 3: Cross multiply
    28,653.39x = 42,929.24 × 11,976.66
  4. Step 4: Simplify right side
    28,653.39x = 514,148,851.66
  5. Step 5: Solve for x
    x = 514,148,851.66/28,653.39
  6. Step 6: Final answer
    x = 17,943.74

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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.