Home / 21,103.70-29,124.18-12,152.46

Finding the Fourth Proportional to 21,103.70, 29,124.18 and 12,152.46

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Solution

The fourth proportional to 21,103.70, 29,124.18 and 12,152.46 is: 16,771.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,103.70 : 29,124.18 = 12,152.46 : x
  2. Step 2: Convert to fraction form
    21,103.70/29,124.18 = 12,152.46/x
  3. Step 3: Cross multiply
    21,103.70x = 29,124.18 × 12,152.46
  4. Step 4: Simplify right side
    21,103.70x = 353,930,432.48
  5. Step 5: Solve for x
    x = 353,930,432.48/21,103.70
  6. Step 6: Final answer
    x = 16,771.01

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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.