Home / 28,081.18-38,742.64-18,015.05

Finding the Fourth Proportional to 28,081.18, 38,742.64 and 18,015.05

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Solution

The fourth proportional to 28,081.18, 38,742.64 and 18,015.05 is: 24,854.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081.18 : 38,742.64 = 18,015.05 : x
  2. Step 2: Convert to fraction form
    28,081.18/38,742.64 = 18,015.05/x
  3. Step 3: Cross multiply
    28,081.18x = 38,742.64 × 18,015.05
  4. Step 4: Simplify right side
    28,081.18x = 697,950,506.66
  5. Step 5: Solve for x
    x = 697,950,506.66/28,081.18
  6. Step 6: Final answer
    x = 24,854.75

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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.