Home / 14,235.75-21,331.35-10,721.70

Finding the Fourth Proportional to 14,235.75, 21,331.35 and 10,721.70

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Solution

The fourth proportional to 14,235.75, 21,331.35 and 10,721.70 is: 16,065.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,235.75 : 21,331.35 = 10,721.70 : x
  2. Step 2: Convert to fraction form
    14,235.75/21,331.35 = 10,721.70/x
  3. Step 3: Cross multiply
    14,235.75x = 21,331.35 × 10,721.70
  4. Step 4: Simplify right side
    14,235.75x = 228,708,335.30
  5. Step 5: Solve for x
    x = 228,708,335.30/14,235.75
  6. Step 6: Final answer
    x = 16,065.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.