Home / 21,837.60-32,707.80-11,437.20

Finding the Fourth Proportional to 21,837.60, 32,707.80 and 11,437.20

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Solution

The fourth proportional to 21,837.60, 32,707.80 and 11,437.20 is: 17,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,837.60 : 32,707.80 = 11,437.20 : x
  2. Step 2: Convert to fraction form
    21,837.60/32,707.80 = 11,437.20/x
  3. Step 3: Cross multiply
    21,837.60x = 32,707.80 × 11,437.20
  4. Step 4: Simplify right side
    21,837.60x = 374,085,650.16
  5. Step 5: Solve for x
    x = 374,085,650.16/21,837.60
  6. Step 6: Final answer
    x = 17,130.35

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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.