Home / 21,572.29-32,360.82-9,090.01

Finding the Fourth Proportional to 21,572.29, 32,360.82 and 9,090.01

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Solution

The fourth proportional to 21,572.29, 32,360.82 and 9,090.01 is: 13,636.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,572.29 : 32,360.82 = 9,090.01 : x
  2. Step 2: Convert to fraction form
    21,572.29/32,360.82 = 9,090.01/x
  3. Step 3: Cross multiply
    21,572.29x = 32,360.82 × 9,090.01
  4. Step 4: Simplify right side
    21,572.29x = 294,160,177.41
  5. Step 5: Solve for x
    x = 294,160,177.41/21,572.29
  6. Step 6: Final answer
    x = 13,636.02

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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.