Home / 16,981.12-23,404.80-14,613.76

Finding the Fourth Proportional to 16,981.12, 23,404.80 and 14,613.76

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Solution

The fourth proportional to 16,981.12, 23,404.80 and 14,613.76 is: 20,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,981.12 : 23,404.80 = 14,613.76 : x
  2. Step 2: Convert to fraction form
    16,981.12/23,404.80 = 14,613.76/x
  3. Step 3: Cross multiply
    16,981.12x = 23,404.80 × 14,613.76
  4. Step 4: Simplify right side
    16,981.12x = 342,032,130.05
  5. Step 5: Solve for x
    x = 342,032,130.05/16,981.12
  6. Step 6: Final answer
    x = 20,141.91

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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.