Home / 21,708.19-29,953.22-13,753.05

Finding the Fourth Proportional to 21,708.19, 29,953.22 and 13,753.05

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Solution

The fourth proportional to 21,708.19, 29,953.22 and 13,753.05 is: 18,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708.19 : 29,953.22 = 13,753.05 : x
  2. Step 2: Convert to fraction form
    21,708.19/29,953.22 = 13,753.05/x
  3. Step 3: Cross multiply
    21,708.19x = 29,953.22 × 13,753.05
  4. Step 4: Simplify right side
    21,708.19x = 411,948,132.32
  5. Step 5: Solve for x
    x = 411,948,132.32/21,708.19
  6. Step 6: Final answer
    x = 18,976.62

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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.