Home / 28,961.28-43,427.12-14,148

Finding the Fourth Proportional to 28,961.28, 43,427.12 and 14,148

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Solution

The fourth proportional to 28,961.28, 43,427.12 and 14,148 is: 21,214.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,961.28 : 43,427.12 = 14,148 : x
  2. Step 2: Convert to fraction form
    28,961.28/43,427.12 = 14,148/x
  3. Step 3: Cross multiply
    28,961.28x = 43,427.12 × 14,148
  4. Step 4: Simplify right side
    28,961.28x = 614,406,893.76
  5. Step 5: Solve for x
    x = 614,406,893.76/28,961.28
  6. Step 6: Final answer
    x = 21,214.77

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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.