Home / 28,673.16-43,009.68-18,810.08

Finding the Fourth Proportional to 28,673.16, 43,009.68 and 18,810.08

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Solution

The fourth proportional to 28,673.16, 43,009.68 and 18,810.08 is: 28,215.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,673.16 : 43,009.68 = 18,810.08 : x
  2. Step 2: Convert to fraction form
    28,673.16/43,009.68 = 18,810.08/x
  3. Step 3: Cross multiply
    28,673.16x = 43,009.68 × 18,810.08
  4. Step 4: Simplify right side
    28,673.16x = 809,015,521.57
  5. Step 5: Solve for x
    x = 809,015,521.57/28,673.16
  6. Step 6: Final answer
    x = 28,215.08

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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.