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Finding the Fourth Proportional to 40,005, 55,206.90 and 23,239.08

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Solution

The fourth proportional to 40,005, 55,206.90 and 23,239.08 is: 32,069.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,005 : 55,206.90 = 23,239.08 : x
  2. Step 2: Convert to fraction form
    40,005/55,206.90 = 23,239.08/x
  3. Step 3: Cross multiply
    40,005x = 55,206.90 × 23,239.08
  4. Step 4: Simplify right side
    40,005x = 1,282,957,565.65
  5. Step 5: Solve for x
    x = 1,282,957,565.65/40,005
  6. Step 6: Final answer
    x = 32,069.93

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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.