Home / 20,903.30-31,354.93-9,047.36

Finding the Fourth Proportional to 20,903.30, 31,354.93 and 9,047.36

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Solution

The fourth proportional to 20,903.30, 31,354.93 and 9,047.36 is: 13,571.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.30 : 31,354.93 = 9,047.36 : x
  2. Step 2: Convert to fraction form
    20,903.30/31,354.93 = 9,047.36/x
  3. Step 3: Cross multiply
    20,903.30x = 31,354.93 × 9,047.36
  4. Step 4: Simplify right side
    20,903.30x = 283,679,429.18
  5. Step 5: Solve for x
    x = 283,679,429.18/20,903.30
  6. Step 6: Final answer
    x = 13,571.04

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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.