Home / 21,480.72-29,646.18-12,052.32

Finding the Fourth Proportional to 21,480.72, 29,646.18 and 12,052.32

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Solution

The fourth proportional to 21,480.72, 29,646.18 and 12,052.32 is: 16,633.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,480.72 : 29,646.18 = 12,052.32 : x
  2. Step 2: Convert to fraction form
    21,480.72/29,646.18 = 12,052.32/x
  3. Step 3: Cross multiply
    21,480.72x = 29,646.18 × 12,052.32
  4. Step 4: Simplify right side
    21,480.72x = 357,305,248.14
  5. Step 5: Solve for x
    x = 357,305,248.14/21,480.72
  6. Step 6: Final answer
    x = 16,633.76

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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.