Home / 21,186.47-29,225.18-12,232.31

Finding the Fourth Proportional to 21,186.47, 29,225.18 and 12,232.31

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Solution

The fourth proportional to 21,186.47, 29,225.18 and 12,232.31 is: 16,873.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.47 : 29,225.18 = 12,232.31 : x
  2. Step 2: Convert to fraction form
    21,186.47/29,225.18 = 12,232.31/x
  3. Step 3: Cross multiply
    21,186.47x = 29,225.18 × 12,232.31
  4. Step 4: Simplify right side
    21,186.47x = 357,491,254.28
  5. Step 5: Solve for x
    x = 357,491,254.28/21,186.47
  6. Step 6: Final answer
    x = 16,873.57

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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.