Home / 28,995.11-40,032.74-18,109.83

Finding the Fourth Proportional to 28,995.11, 40,032.74 and 18,109.83

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Solution

The fourth proportional to 28,995.11, 40,032.74 and 18,109.83 is: 25,003.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,995.11 : 40,032.74 = 18,109.83 : x
  2. Step 2: Convert to fraction form
    28,995.11/40,032.74 = 18,109.83/x
  3. Step 3: Cross multiply
    28,995.11x = 40,032.74 × 18,109.83
  4. Step 4: Simplify right side
    28,995.11x = 724,986,025.29
  5. Step 5: Solve for x
    x = 724,986,025.29/28,995.11
  6. Step 6: Final answer
    x = 25,003.74

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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.