Home / 21,715.16-32,578.90-11,192.89

Finding the Fourth Proportional to 21,715.16, 32,578.90 and 11,192.89

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Solution

The fourth proportional to 21,715.16, 32,578.90 and 11,192.89 is: 16,792.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715.16 : 32,578.90 = 11,192.89 : x
  2. Step 2: Convert to fraction form
    21,715.16/32,578.90 = 11,192.89/x
  3. Step 3: Cross multiply
    21,715.16x = 32,578.90 × 11,192.89
  4. Step 4: Simplify right side
    21,715.16x = 364,652,044.02
  5. Step 5: Solve for x
    x = 364,652,044.02/21,715.16
  6. Step 6: Final answer
    x = 16,792.51

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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.