Home / 19,657.10-27,128.96-12,101.92

Finding the Fourth Proportional to 19,657.10, 27,128.96 and 12,101.92

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Solution

The fourth proportional to 19,657.10, 27,128.96 and 12,101.92 is: 16,701.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,657.10 : 27,128.96 = 12,101.92 : x
  2. Step 2: Convert to fraction form
    19,657.10/27,128.96 = 12,101.92/x
  3. Step 3: Cross multiply
    19,657.10x = 27,128.96 × 12,101.92
  4. Step 4: Simplify right side
    19,657.10x = 328,312,503.60
  5. Step 5: Solve for x
    x = 328,312,503.60/19,657.10
  6. Step 6: Final answer
    x = 16,701.98

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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.