Home / 20,951.08-31,419.90-9,264.04

Finding the Fourth Proportional to 20,951.08, 31,419.90 and 9,264.04

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Solution

The fourth proportional to 20,951.08, 31,419.90 and 9,264.04 is: 13,893.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951.08 : 31,419.90 = 9,264.04 : x
  2. Step 2: Convert to fraction form
    20,951.08/31,419.90 = 9,264.04/x
  3. Step 3: Cross multiply
    20,951.08x = 31,419.90 × 9,264.04
  4. Step 4: Simplify right side
    20,951.08x = 291,075,210.40
  5. Step 5: Solve for x
    x = 291,075,210.40/20,951.08
  6. Step 6: Final answer
    x = 13,893.09

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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.