Home / 28,042.09-38,688.31-17,976.08

Finding the Fourth Proportional to 28,042.09, 38,688.31 and 17,976.08

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Solution

The fourth proportional to 28,042.09, 38,688.31 and 17,976.08 is: 24,800.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.09 : 38,688.31 = 17,976.08 : x
  2. Step 2: Convert to fraction form
    28,042.09/38,688.31 = 17,976.08/x
  3. Step 3: Cross multiply
    28,042.09x = 38,688.31 × 17,976.08
  4. Step 4: Simplify right side
    28,042.09x = 695,464,155.62
  5. Step 5: Solve for x
    x = 695,464,155.62/28,042.09
  6. Step 6: Final answer
    x = 24,800.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.