Home / 21,434.22-29,588.54-16,130.34

Finding the Fourth Proportional to 21,434.22, 29,588.54 and 16,130.34

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Solution

The fourth proportional to 21,434.22, 29,588.54 and 16,130.34 is: 22,266.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,434.22 : 29,588.54 = 16,130.34 : x
  2. Step 2: Convert to fraction form
    21,434.22/29,588.54 = 16,130.34/x
  3. Step 3: Cross multiply
    21,434.22x = 29,588.54 × 16,130.34
  4. Step 4: Simplify right side
    21,434.22x = 477,273,129.65
  5. Step 5: Solve for x
    x = 477,273,129.65/21,434.22
  6. Step 6: Final answer
    x = 22,266.88

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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.