Home / 21,476.63-29,637.77-12,045.20

Finding the Fourth Proportional to 21,476.63, 29,637.77 and 12,045.20

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Solution

The fourth proportional to 21,476.63, 29,637.77 and 12,045.20 is: 16,622.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,476.63 : 29,637.77 = 12,045.20 : x
  2. Step 2: Convert to fraction form
    21,476.63/29,637.77 = 12,045.20/x
  3. Step 3: Cross multiply
    21,476.63x = 29,637.77 × 12,045.20
  4. Step 4: Simplify right side
    21,476.63x = 356,992,658.79
  5. Step 5: Solve for x
    x = 356,992,658.79/21,476.63
  6. Step 6: Final answer
    x = 16,622.38

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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.