Home / 21,366.10-29,490.96-12,292.50

Finding the Fourth Proportional to 21,366.10, 29,490.96 and 12,292.50

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Solution

The fourth proportional to 21,366.10, 29,490.96 and 12,292.50 is: 16,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,366.10 : 29,490.96 = 12,292.50 : x
  2. Step 2: Convert to fraction form
    21,366.10/29,490.96 = 12,292.50/x
  3. Step 3: Cross multiply
    21,366.10x = 29,490.96 × 12,292.50
  4. Step 4: Simplify right side
    21,366.10x = 362,517,416.88
  5. Step 5: Solve for x
    x = 362,517,416.88/21,366.10
  6. Step 6: Final answer
    x = 16,966.95

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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.