Home / 30,128.09-41,577.50-16,516.91

Finding the Fourth Proportional to 30,128.09, 41,577.50 and 16,516.91

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Solution

The fourth proportional to 30,128.09, 41,577.50 and 16,516.91 is: 22,793.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,128.09 : 41,577.50 = 16,516.91 : x
  2. Step 2: Convert to fraction form
    30,128.09/41,577.50 = 16,516.91/x
  3. Step 3: Cross multiply
    30,128.09x = 41,577.50 × 16,516.91
  4. Step 4: Simplify right side
    30,128.09x = 686,731,970.76
  5. Step 5: Solve for x
    x = 686,731,970.76/30,128.09
  6. Step 6: Final answer
    x = 22,793.75

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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.