Home / 28,703.11-43,056.49-7,642.81

Finding the Fourth Proportional to 28,703.11, 43,056.49 and 7,642.81

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Solution

The fourth proportional to 28,703.11, 43,056.49 and 7,642.81 is: 11,464.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,703.11 : 43,056.49 = 7,642.81 : x
  2. Step 2: Convert to fraction form
    28,703.11/43,056.49 = 7,642.81/x
  3. Step 3: Cross multiply
    28,703.11x = 43,056.49 × 7,642.81
  4. Step 4: Simplify right side
    28,703.11x = 329,072,572.34
  5. Step 5: Solve for x
    x = 329,072,572.34/28,703.11
  6. Step 6: Final answer
    x = 11,464.70

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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.