Home / 21,302.19-31,957.34-9,615.38

Finding the Fourth Proportional to 21,302.19, 31,957.34 and 9,615.38

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Solution

The fourth proportional to 21,302.19, 31,957.34 and 9,615.38 is: 14,424.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.19 : 31,957.34 = 9,615.38 : x
  2. Step 2: Convert to fraction form
    21,302.19/31,957.34 = 9,615.38/x
  3. Step 3: Cross multiply
    21,302.19x = 31,957.34 × 9,615.38
  4. Step 4: Simplify right side
    21,302.19x = 307,281,760.03
  5. Step 5: Solve for x
    x = 307,281,760.03/21,302.19
  6. Step 6: Final answer
    x = 14,424.89

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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.