Home / 38,511.80-57,810.90-29,785.40

Finding the Fourth Proportional to 38,511.80, 57,810.90 and 29,785.40

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Solution

The fourth proportional to 38,511.80, 57,810.90 and 29,785.40 is: 44,711.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511.80 : 57,810.90 = 29,785.40 : x
  2. Step 2: Convert to fraction form
    38,511.80/57,810.90 = 29,785.40/x
  3. Step 3: Cross multiply
    38,511.80x = 57,810.90 × 29,785.40
  4. Step 4: Simplify right side
    38,511.80x = 1,721,920,780.86
  5. Step 5: Solve for x
    x = 1,721,920,780.86/38,511.80
  6. Step 6: Final answer
    x = 44,711.51

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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.