Home / 21,362.48-32,045.40-7,329.20

Finding the Fourth Proportional to 21,362.48, 32,045.40 and 7,329.20

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Solution

The fourth proportional to 21,362.48, 32,045.40 and 7,329.20 is: 10,994.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362.48 : 32,045.40 = 7,329.20 : x
  2. Step 2: Convert to fraction form
    21,362.48/32,045.40 = 7,329.20/x
  3. Step 3: Cross multiply
    21,362.48x = 32,045.40 × 7,329.20
  4. Step 4: Simplify right side
    21,362.48x = 234,867,145.68
  5. Step 5: Solve for x
    x = 234,867,145.68/21,362.48
  6. Step 6: Final answer
    x = 10,994.38

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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.