Home / 18,875.03-28,311.32-5,727.51

Finding the Fourth Proportional to 18,875.03, 28,311.32 and 5,727.51

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Solution

The fourth proportional to 18,875.03, 28,311.32 and 5,727.51 is: 8,590.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.03 : 28,311.32 = 5,727.51 : x
  2. Step 2: Convert to fraction form
    18,875.03/28,311.32 = 5,727.51/x
  3. Step 3: Cross multiply
    18,875.03x = 28,311.32 × 5,727.51
  4. Step 4: Simplify right side
    18,875.03x = 162,153,382.73
  5. Step 5: Solve for x
    x = 162,153,382.73/18,875.03
  6. Step 6: Final answer
    x = 8,590.90

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1.5x scale

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.