Home / 38,120.43-52,606.31-21,124.95

Finding the Fourth Proportional to 38,120.43, 52,606.31 and 21,124.95

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Solution

The fourth proportional to 38,120.43, 52,606.31 and 21,124.95 is: 29,152.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,120.43 : 52,606.31 = 21,124.95 : x
  2. Step 2: Convert to fraction form
    38,120.43/52,606.31 = 21,124.95/x
  3. Step 3: Cross multiply
    38,120.43x = 52,606.31 × 21,124.95
  4. Step 4: Simplify right side
    38,120.43x = 1,111,305,613.82
  5. Step 5: Solve for x
    x = 1,111,305,613.82/38,120.43
  6. Step 6: Final answer
    x = 29,152.50

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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.