Home / 43,257.94-64,881.30-13,678.76

Finding the Fourth Proportional to 43,257.94, 64,881.30 and 13,678.76

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Solution

The fourth proportional to 43,257.94, 64,881.30 and 13,678.76 is: 20,516.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,257.94 : 64,881.30 = 13,678.76 : x
  2. Step 2: Convert to fraction form
    43,257.94/64,881.30 = 13,678.76/x
  3. Step 3: Cross multiply
    43,257.94x = 64,881.30 × 13,678.76
  4. Step 4: Simplify right side
    43,257.94x = 887,495,731.19
  5. Step 5: Solve for x
    x = 887,495,731.19/43,257.94
  6. Step 6: Final answer
    x = 20,516.37

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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.