Home / 38,851.70-53,614.77-21,854.66

Finding the Fourth Proportional to 38,851.70, 53,614.77 and 21,854.66

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Solution

The fourth proportional to 38,851.70, 53,614.77 and 21,854.66 is: 30,159.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,851.70 : 53,614.77 = 21,854.66 : x
  2. Step 2: Convert to fraction form
    38,851.70/53,614.77 = 21,854.66/x
  3. Step 3: Cross multiply
    38,851.70x = 53,614.77 × 21,854.66
  4. Step 4: Simplify right side
    38,851.70x = 1,171,732,569.33
  5. Step 5: Solve for x
    x = 1,171,732,569.33/38,851.70
  6. Step 6: Final answer
    x = 30,159.11

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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.