Home / 38,851.04-53,609.39-21,854.71

Finding the Fourth Proportional to 38,851.04, 53,609.39 and 21,854.71

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Solution

The fourth proportional to 38,851.04, 53,609.39 and 21,854.71 is: 30,156.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,851.04 : 53,609.39 = 21,854.71 : x
  2. Step 2: Convert to fraction form
    38,851.04/53,609.39 = 21,854.71/x
  3. Step 3: Cross multiply
    38,851.04x = 53,609.39 × 21,854.71
  4. Step 4: Simplify right side
    38,851.04x = 1,171,617,834.35
  5. Step 5: Solve for x
    x = 1,171,617,834.35/38,851.04
  6. Step 6: Final answer
    x = 30,156.66

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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.