Home / 21,000.46-28,946.85-14,192.35

Finding the Fourth Proportional to 21,000.46, 28,946.85 and 14,192.35

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Solution

The fourth proportional to 21,000.46, 28,946.85 and 14,192.35 is: 19,562.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000.46 : 28,946.85 = 14,192.35 : x
  2. Step 2: Convert to fraction form
    21,000.46/28,946.85 = 14,192.35/x
  3. Step 3: Cross multiply
    21,000.46x = 28,946.85 × 14,192.35
  4. Step 4: Simplify right side
    21,000.46x = 410,823,826.60
  5. Step 5: Solve for x
    x = 410,823,826.60/21,000.46
  6. Step 6: Final answer
    x = 19,562.61

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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.