Home / 21,758.16-32,587.68-12,974.94

Finding the Fourth Proportional to 21,758.16, 32,587.68 and 12,974.94

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Solution

The fourth proportional to 21,758.16, 32,587.68 and 12,974.94 is: 19,432.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,758.16 : 32,587.68 = 12,974.94 : x
  2. Step 2: Convert to fraction form
    21,758.16/32,587.68 = 12,974.94/x
  3. Step 3: Cross multiply
    21,758.16x = 32,587.68 × 12,974.94
  4. Step 4: Simplify right side
    21,758.16x = 422,823,192.74
  5. Step 5: Solve for x
    x = 422,823,192.74/21,758.16
  6. Step 6: Final answer
    x = 19,432.86

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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.