Home / 21,586.94-29,574.22-20,777.97

Finding the Fourth Proportional to 21,586.94, 29,574.22 and 20,777.97

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Solution

The fourth proportional to 21,586.94, 29,574.22 and 20,777.97 is: 28,465.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,586.94 : 29,574.22 = 20,777.97 : x
  2. Step 2: Convert to fraction form
    21,586.94/29,574.22 = 20,777.97/x
  3. Step 3: Cross multiply
    21,586.94x = 29,574.22 × 20,777.97
  4. Step 4: Simplify right side
    21,586.94x = 614,492,045.88
  5. Step 5: Solve for x
    x = 614,492,045.88/21,586.94
  6. Step 6: Final answer
    x = 28,465.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.