Home / 21,230.61-29,293.95-12,274.84

Finding the Fourth Proportional to 21,230.61, 29,293.95 and 12,274.84

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Solution

The fourth proportional to 21,230.61, 29,293.95 and 12,274.84 is: 16,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.61 : 29,293.95 = 12,274.84 : x
  2. Step 2: Convert to fraction form
    21,230.61/29,293.95 = 12,274.84/x
  3. Step 3: Cross multiply
    21,230.61x = 29,293.95 × 12,274.84
  4. Step 4: Simplify right side
    21,230.61x = 359,578,631.87
  5. Step 5: Solve for x
    x = 359,578,631.87/21,230.61
  6. Step 6: Final answer
    x = 16,936.80

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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.