Home / 21,016.76-29,004.36-12,064.28

Finding the Fourth Proportional to 21,016.76, 29,004.36 and 12,064.28

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Solution

The fourth proportional to 21,016.76, 29,004.36 and 12,064.28 is: 16,649.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.76 : 29,004.36 = 12,064.28 : x
  2. Step 2: Convert to fraction form
    21,016.76/29,004.36 = 12,064.28/x
  3. Step 3: Cross multiply
    21,016.76x = 29,004.36 × 12,064.28
  4. Step 4: Simplify right side
    21,016.76x = 349,916,720.26
  5. Step 5: Solve for x
    x = 349,916,720.26/21,016.76
  6. Step 6: Final answer
    x = 16,649.41

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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.