Home / 28,484.65-42,727.25-18,686.08

Finding the Fourth Proportional to 28,484.65, 42,727.25 and 18,686.08

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Solution

The fourth proportional to 28,484.65, 42,727.25 and 18,686.08 is: 28,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,484.65 : 42,727.25 = 18,686.08 : x
  2. Step 2: Convert to fraction form
    28,484.65/42,727.25 = 18,686.08/x
  3. Step 3: Cross multiply
    28,484.65x = 42,727.25 × 18,686.08
  4. Step 4: Simplify right side
    28,484.65x = 798,404,811.68
  5. Step 5: Solve for x
    x = 798,404,811.68/28,484.65
  6. Step 6: Final answer
    x = 28,029.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.