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Finding the Fourth Proportional to 21,283.01, 31,935.44 and 9,444.89

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Solution

The fourth proportional to 21,283.01, 31,935.44 and 9,444.89 is: 14,172.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.01 : 31,935.44 = 9,444.89 : x
  2. Step 2: Convert to fraction form
    21,283.01/31,935.44 = 9,444.89/x
  3. Step 3: Cross multiply
    21,283.01x = 31,935.44 × 9,444.89
  4. Step 4: Simplify right side
    21,283.01x = 301,626,821.35
  5. Step 5: Solve for x
    x = 301,626,821.35/21,283.01
  6. Step 6: Final answer
    x = 14,172.19

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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.