Home / 21,733.05-29,990.57-13,347.93

Finding the Fourth Proportional to 21,733.05, 29,990.57 and 13,347.93

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Solution

The fourth proportional to 21,733.05, 29,990.57 and 13,347.93 is: 18,419.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,733.05 : 29,990.57 = 13,347.93 : x
  2. Step 2: Convert to fraction form
    21,733.05/29,990.57 = 13,347.93/x
  3. Step 3: Cross multiply
    21,733.05x = 29,990.57 × 13,347.93
  4. Step 4: Simplify right side
    21,733.05x = 400,311,962.28
  5. Step 5: Solve for x
    x = 400,311,962.28/21,733.05
  6. Step 6: Final answer
    x = 18,419.50

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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.