Home / 21,158.24-31,737.60-7,304

Finding the Fourth Proportional to 21,158.24, 31,737.60 and 7,304

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Solution

The fourth proportional to 21,158.24, 31,737.60 and 7,304 is: 10,956.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,158.24 : 31,737.60 = 7,304 : x
  2. Step 2: Convert to fraction form
    21,158.24/31,737.60 = 7,304/x
  3. Step 3: Cross multiply
    21,158.24x = 31,737.60 × 7,304
  4. Step 4: Simplify right side
    21,158.24x = 231,811,430.40
  5. Step 5: Solve for x
    x = 231,811,430.40/21,158.24
  6. Step 6: Final answer
    x = 10,956.08

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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.