Home / 21,628.35-32,437.62-9,930.33

Finding the Fourth Proportional to 21,628.35, 32,437.62 and 9,930.33

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Solution

The fourth proportional to 21,628.35, 32,437.62 and 9,930.33 is: 14,893.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,628.35 : 32,437.62 = 9,930.33 : x
  2. Step 2: Convert to fraction form
    21,628.35/32,437.62 = 9,930.33/x
  3. Step 3: Cross multiply
    21,628.35x = 32,437.62 × 9,930.33
  4. Step 4: Simplify right side
    21,628.35x = 322,116,271.01
  5. Step 5: Solve for x
    x = 322,116,271.01/21,628.35
  6. Step 6: Final answer
    x = 14,893.24

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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.