Home / 40,979.52-56,539.92-28,236.12

Finding the Fourth Proportional to 40,979.52, 56,539.92 and 28,236.12

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Solution

The fourth proportional to 40,979.52, 56,539.92 and 28,236.12 is: 38,957.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,979.52 : 56,539.92 = 28,236.12 : x
  2. Step 2: Convert to fraction form
    40,979.52/56,539.92 = 28,236.12/x
  3. Step 3: Cross multiply
    40,979.52x = 56,539.92 × 28,236.12
  4. Step 4: Simplify right side
    40,979.52x = 1,596,467,965.91
  5. Step 5: Solve for x
    x = 1,596,467,965.91/40,979.52
  6. Step 6: Final answer
    x = 38,957.70

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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.