Home / 21,500.12-29,673.18-12,552.45

Finding the Fourth Proportional to 21,500.12, 29,673.18 and 12,552.45

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Solution

The fourth proportional to 21,500.12, 29,673.18 and 12,552.45 is: 17,324.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,500.12 : 29,673.18 = 12,552.45 : x
  2. Step 2: Convert to fraction form
    21,500.12/29,673.18 = 12,552.45/x
  3. Step 3: Cross multiply
    21,500.12x = 29,673.18 × 12,552.45
  4. Step 4: Simplify right side
    21,500.12x = 372,471,108.29
  5. Step 5: Solve for x
    x = 372,471,108.29/21,500.12
  6. Step 6: Final answer
    x = 17,324.14

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1.5x scale

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.