Home / 28,020.47-38,673.38-17,953.25

Finding the Fourth Proportional to 28,020.47, 38,673.38 and 17,953.25

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Solution

The fourth proportional to 28,020.47, 38,673.38 and 17,953.25 is: 24,778.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,020.47 : 38,673.38 = 17,953.25 : x
  2. Step 2: Convert to fraction form
    28,020.47/38,673.38 = 17,953.25/x
  3. Step 3: Cross multiply
    28,020.47x = 38,673.38 × 17,953.25
  4. Step 4: Simplify right side
    28,020.47x = 694,312,711.00
  5. Step 5: Solve for x
    x = 694,312,711.00/28,020.47
  6. Step 6: Final answer
    x = 24,778.77

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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.