Home / 21,267.76-29,353.32-16,223.92

Finding the Fourth Proportional to 21,267.76, 29,353.32 and 16,223.92

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Solution

The fourth proportional to 21,267.76, 29,353.32 and 16,223.92 is: 22,391.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.76 : 29,353.32 = 16,223.92 : x
  2. Step 2: Convert to fraction form
    21,267.76/29,353.32 = 16,223.92/x
  3. Step 3: Cross multiply
    21,267.76x = 29,353.32 × 16,223.92
  4. Step 4: Simplify right side
    21,267.76x = 476,225,915.41
  5. Step 5: Solve for x
    x = 476,225,915.41/21,267.76
  6. Step 6: Final answer
    x = 22,391.92

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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.