Home / 21,776.74-30,052.49-12,822.59

Finding the Fourth Proportional to 21,776.74, 30,052.49 and 12,822.59

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Solution

The fourth proportional to 21,776.74, 30,052.49 and 12,822.59 is: 17,695.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,776.74 : 30,052.49 = 12,822.59 : x
  2. Step 2: Convert to fraction form
    21,776.74/30,052.49 = 12,822.59/x
  3. Step 3: Cross multiply
    21,776.74x = 30,052.49 × 12,822.59
  4. Step 4: Simplify right side
    21,776.74x = 385,350,768.77
  5. Step 5: Solve for x
    x = 385,350,768.77/21,776.74
  6. Step 6: Final answer
    x = 17,695.52

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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.