Home / 28,666.31-42,989.22-9,941.36

Finding the Fourth Proportional to 28,666.31, 42,989.22 and 9,941.36

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Solution

The fourth proportional to 28,666.31, 42,989.22 and 9,941.36 is: 14,908.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,666.31 : 42,989.22 = 9,941.36 : x
  2. Step 2: Convert to fraction form
    28,666.31/42,989.22 = 9,941.36/x
  3. Step 3: Cross multiply
    28,666.31x = 42,989.22 × 9,941.36
  4. Step 4: Simplify right side
    28,666.31x = 427,371,097.19
  5. Step 5: Solve for x
    x = 427,371,097.19/28,666.31
  6. Step 6: Final answer
    x = 14,908.48

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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.