Home / 21,390.48-32,088.06-7,351.56

Finding the Fourth Proportional to 21,390.48, 32,088.06 and 7,351.56

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Solution

The fourth proportional to 21,390.48, 32,088.06 and 7,351.56 is: 11,028.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390.48 : 32,088.06 = 7,351.56 : x
  2. Step 2: Convert to fraction form
    21,390.48/32,088.06 = 7,351.56/x
  3. Step 3: Cross multiply
    21,390.48x = 32,088.06 × 7,351.56
  4. Step 4: Simplify right side
    21,390.48x = 235,897,298.37
  5. Step 5: Solve for x
    x = 235,897,298.37/21,390.48
  6. Step 6: Final answer
    x = 11,028.14

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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.