Home / 21,017.44-31,529.04-9,330.40

Finding the Fourth Proportional to 21,017.44, 31,529.04 and 9,330.40

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Solution

The fourth proportional to 21,017.44, 31,529.04 and 9,330.40 is: 13,996.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017.44 : 31,529.04 = 9,330.40 : x
  2. Step 2: Convert to fraction form
    21,017.44/31,529.04 = 9,330.40/x
  3. Step 3: Cross multiply
    21,017.44x = 31,529.04 × 9,330.40
  4. Step 4: Simplify right side
    21,017.44x = 294,178,554.82
  5. Step 5: Solve for x
    x = 294,178,554.82/21,017.44
  6. Step 6: Final answer
    x = 13,996.88

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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.