Home / 21,277.86-31,916.70-9,577.38

Finding the Fourth Proportional to 21,277.86, 31,916.70 and 9,577.38

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Solution

The fourth proportional to 21,277.86, 31,916.70 and 9,577.38 is: 14,366.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.86 : 31,916.70 = 9,577.38 : x
  2. Step 2: Convert to fraction form
    21,277.86/31,916.70 = 9,577.38/x
  3. Step 3: Cross multiply
    21,277.86x = 31,916.70 × 9,577.38
  4. Step 4: Simplify right side
    21,277.86x = 305,678,364.25
  5. Step 5: Solve for x
    x = 305,678,364.25/21,277.86
  6. Step 6: Final answer
    x = 14,366.03

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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.