Home / 21,460.84-29,615.92-12,029.40

Finding the Fourth Proportional to 21,460.84, 29,615.92 and 12,029.40

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Solution

The fourth proportional to 21,460.84, 29,615.92 and 12,029.40 is: 16,600.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,460.84 : 29,615.92 = 12,029.40 : x
  2. Step 2: Convert to fraction form
    21,460.84/29,615.92 = 12,029.40/x
  3. Step 3: Cross multiply
    21,460.84x = 29,615.92 × 12,029.40
  4. Step 4: Simplify right side
    21,460.84x = 356,261,748.05
  5. Step 5: Solve for x
    x = 356,261,748.05/21,460.84
  6. Step 6: Final answer
    x = 16,600.55

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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.