Home / 21,322.02-29,423.70-11,761.89

Finding the Fourth Proportional to 21,322.02, 29,423.70 and 11,761.89

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Solution

The fourth proportional to 21,322.02, 29,423.70 and 11,761.89 is: 16,231.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.02 : 29,423.70 = 11,761.89 : x
  2. Step 2: Convert to fraction form
    21,322.02/29,423.70 = 11,761.89/x
  3. Step 3: Cross multiply
    21,322.02x = 29,423.70 × 11,761.89
  4. Step 4: Simplify right side
    21,322.02x = 346,078,175.67
  5. Step 5: Solve for x
    x = 346,078,175.67/21,322.02
  6. Step 6: Final answer
    x = 16,231.02

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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.