Home / 21,447.92-29,598.46-12,495.20

Finding the Fourth Proportional to 21,447.92, 29,598.46 and 12,495.20

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Solution

The fourth proportional to 21,447.92, 29,598.46 and 12,495.20 is: 17,243.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.92 : 29,598.46 = 12,495.20 : x
  2. Step 2: Convert to fraction form
    21,447.92/29,598.46 = 12,495.20/x
  3. Step 3: Cross multiply
    21,447.92x = 29,598.46 × 12,495.20
  4. Step 4: Simplify right side
    21,447.92x = 369,838,677.39
  5. Step 5: Solve for x
    x = 369,838,677.39/21,447.92
  6. Step 6: Final answer
    x = 17,243.57

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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.