Home / 43,311.51-64,955.99-18,338.72

Finding the Fourth Proportional to 43,311.51, 64,955.99 and 18,338.72

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Solution

The fourth proportional to 43,311.51, 64,955.99 and 18,338.72 is: 27,503.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,311.51 : 64,955.99 = 18,338.72 : x
  2. Step 2: Convert to fraction form
    43,311.51/64,955.99 = 18,338.72/x
  3. Step 3: Cross multiply
    43,311.51x = 64,955.99 × 18,338.72
  4. Step 4: Simplify right side
    43,311.51x = 1,191,209,434.00
  5. Step 5: Solve for x
    x = 1,191,209,434.00/43,311.51
  6. Step 6: Final answer
    x = 27,503.30

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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.