Home / 21,150.08-29,187.10-12,652.56

Finding the Fourth Proportional to 21,150.08, 29,187.10 and 12,652.56

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Solution

The fourth proportional to 21,150.08, 29,187.10 and 12,652.56 is: 17,460.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150.08 : 29,187.10 = 12,652.56 : x
  2. Step 2: Convert to fraction form
    21,150.08/29,187.10 = 12,652.56/x
  3. Step 3: Cross multiply
    21,150.08x = 29,187.10 × 12,652.56
  4. Step 4: Simplify right side
    21,150.08x = 369,291,419.67
  5. Step 5: Solve for x
    x = 369,291,419.67/21,150.08
  6. Step 6: Final answer
    x = 17,460.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.