Home / 21,205.94-29,263.95-12,253.41

Finding the Fourth Proportional to 21,205.94, 29,263.95 and 12,253.41

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Solution

The fourth proportional to 21,205.94, 29,263.95 and 12,253.41 is: 16,909.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205.94 : 29,263.95 = 12,253.41 : x
  2. Step 2: Convert to fraction form
    21,205.94/29,263.95 = 12,253.41/x
  3. Step 3: Cross multiply
    21,205.94x = 29,263.95 × 12,253.41
  4. Step 4: Simplify right side
    21,205.94x = 358,583,177.57
  5. Step 5: Solve for x
    x = 358,583,177.57/21,205.94
  6. Step 6: Final answer
    x = 16,909.57

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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.