Home / 20,973.24-31,463.10-7,119

Finding the Fourth Proportional to 20,973.24, 31,463.10 and 7,119

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Solution

The fourth proportional to 20,973.24, 31,463.10 and 7,119 is: 10,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.24 : 31,463.10 = 7,119 : x
  2. Step 2: Convert to fraction form
    20,973.24/31,463.10 = 7,119/x
  3. Step 3: Cross multiply
    20,973.24x = 31,463.10 × 7,119
  4. Step 4: Simplify right side
    20,973.24x = 223,985,808.90
  5. Step 5: Solve for x
    x = 223,985,808.90/20,973.24
  6. Step 6: Final answer
    x = 10,679.60

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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.