Home / 21,705.45-29,957.35-12,752.95

Finding the Fourth Proportional to 21,705.45, 29,957.35 and 12,752.95

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Solution

The fourth proportional to 21,705.45, 29,957.35 and 12,752.95 is: 17,601.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,705.45 : 29,957.35 = 12,752.95 : x
  2. Step 2: Convert to fraction form
    21,705.45/29,957.35 = 12,752.95/x
  3. Step 3: Cross multiply
    21,705.45x = 29,957.35 × 12,752.95
  4. Step 4: Simplify right side
    21,705.45x = 382,044,527.73
  5. Step 5: Solve for x
    x = 382,044,527.73/21,705.45
  6. Step 6: Final answer
    x = 17,601.32

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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.