Home / 38,455.80-57,683.70-19,793.40

Finding the Fourth Proportional to 38,455.80, 57,683.70 and 19,793.40

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Solution

The fourth proportional to 38,455.80, 57,683.70 and 19,793.40 is: 29,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,455.80 : 57,683.70 = 19,793.40 : x
  2. Step 2: Convert to fraction form
    38,455.80/57,683.70 = 19,793.40/x
  3. Step 3: Cross multiply
    38,455.80x = 57,683.70 × 19,793.40
  4. Step 4: Simplify right side
    38,455.80x = 1,141,756,547.58
  5. Step 5: Solve for x
    x = 1,141,756,547.58/38,455.80
  6. Step 6: Final answer
    x = 29,690.10

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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.