Home / 21,837.40-32,756.10-12,506.20

Finding the Fourth Proportional to 21,837.40, 32,756.10 and 12,506.20

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Solution

The fourth proportional to 21,837.40, 32,756.10 and 12,506.20 is: 18,759.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,837.40 : 32,756.10 = 12,506.20 : x
  2. Step 2: Convert to fraction form
    21,837.40/32,756.10 = 12,506.20/x
  3. Step 3: Cross multiply
    21,837.40x = 32,756.10 × 12,506.20
  4. Step 4: Simplify right side
    21,837.40x = 409,654,337.82
  5. Step 5: Solve for x
    x = 409,654,337.82/21,837.40
  6. Step 6: Final answer
    x = 18,759.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.