Home / 21,331.36-29,445.35-16,041.45

Finding the Fourth Proportional to 21,331.36, 29,445.35 and 16,041.45

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Solution

The fourth proportional to 21,331.36, 29,445.35 and 16,041.45 is: 22,143.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.36 : 29,445.35 = 16,041.45 : x
  2. Step 2: Convert to fraction form
    21,331.36/29,445.35 = 16,041.45/x
  3. Step 3: Cross multiply
    21,331.36x = 29,445.35 × 16,041.45
  4. Step 4: Simplify right side
    21,331.36x = 472,346,029.55
  5. Step 5: Solve for x
    x = 472,346,029.55/21,331.36
  6. Step 6: Final answer
    x = 22,143.27

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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.