Home / 21,456.33-32,176.58-7,412.75

Finding the Fourth Proportional to 21,456.33, 32,176.58 and 7,412.75

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Solution

The fourth proportional to 21,456.33, 32,176.58 and 7,412.75 is: 11,116.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456.33 : 32,176.58 = 7,412.75 : x
  2. Step 2: Convert to fraction form
    21,456.33/32,176.58 = 7,412.75/x
  3. Step 3: Cross multiply
    21,456.33x = 32,176.58 × 7,412.75
  4. Step 4: Simplify right side
    21,456.33x = 238,516,943.40
  5. Step 5: Solve for x
    x = 238,516,943.40/21,456.33
  6. Step 6: Final answer
    x = 11,116.39

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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.