Home / 21,302.06-31,957.20-9,615.29

Finding the Fourth Proportional to 21,302.06, 31,957.20 and 9,615.29

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Solution

The fourth proportional to 21,302.06, 31,957.20 and 9,615.29 is: 14,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.06 : 31,957.20 = 9,615.29 : x
  2. Step 2: Convert to fraction form
    21,302.06/31,957.20 = 9,615.29/x
  3. Step 3: Cross multiply
    21,302.06x = 31,957.20 × 9,615.29
  4. Step 4: Simplify right side
    21,302.06x = 307,277,825.48
  5. Step 5: Solve for x
    x = 307,277,825.48/21,302.06
  6. Step 6: Final answer
    x = 14,424.79

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1.5x scale

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.