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Finding the Fourth Proportional to 35,596.91, 49,116.80 and 20,490.21

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Solution

The fourth proportional to 35,596.91, 49,116.80 and 20,490.21 is: 28,272.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,596.91 : 49,116.80 = 20,490.21 : x
  2. Step 2: Convert to fraction form
    35,596.91/49,116.80 = 20,490.21/x
  3. Step 3: Cross multiply
    35,596.91x = 49,116.80 × 20,490.21
  4. Step 4: Simplify right side
    35,596.91x = 1,006,413,597.75
  5. Step 5: Solve for x
    x = 1,006,413,597.75/35,596.91
  6. Step 6: Final answer
    x = 28,272.50

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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.