Home / 38,109.90-52,591.54-21,977.13

Finding the Fourth Proportional to 38,109.90, 52,591.54 and 21,977.13

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Solution

The fourth proportional to 38,109.90, 52,591.54 and 21,977.13 is: 30,328.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,109.90 : 52,591.54 = 21,977.13 : x
  2. Step 2: Convert to fraction form
    38,109.90/52,591.54 = 21,977.13/x
  3. Step 3: Cross multiply
    38,109.90x = 52,591.54 × 21,977.13
  4. Step 4: Simplify right side
    38,109.90x = 1,155,811,111.48
  5. Step 5: Solve for x
    x = 1,155,811,111.48/38,109.90
  6. Step 6: Final answer
    x = 30,328.37

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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.