Home / 21,409.18-32,117.72-7,371.27

Finding the Fourth Proportional to 21,409.18, 32,117.72 and 7,371.27

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Solution

The fourth proportional to 21,409.18, 32,117.72 and 7,371.27 is: 11,058.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409.18 : 32,117.72 = 7,371.27 : x
  2. Step 2: Convert to fraction form
    21,409.18/32,117.72 = 7,371.27/x
  3. Step 3: Cross multiply
    21,409.18x = 32,117.72 × 7,371.27
  4. Step 4: Simplify right side
    21,409.18x = 236,748,349.05
  5. Step 5: Solve for x
    x = 236,748,349.05/21,409.18
  6. Step 6: Final answer
    x = 11,058.26

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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.