Home / 28,756.13-43,071.81-13,933.96

Finding the Fourth Proportional to 28,756.13, 43,071.81 and 13,933.96

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Solution

The fourth proportional to 28,756.13, 43,071.81 and 13,933.96 is: 20,870.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.13 : 43,071.81 = 13,933.96 : x
  2. Step 2: Convert to fraction form
    28,756.13/43,071.81 = 13,933.96/x
  3. Step 3: Cross multiply
    28,756.13x = 43,071.81 × 13,933.96
  4. Step 4: Simplify right side
    28,756.13x = 600,160,877.67
  5. Step 5: Solve for x
    x = 600,160,877.67/28,756.13
  6. Step 6: Final answer
    x = 20,870.71

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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.