Home / 35,811.10-53,716.65-20,259.10

Finding the Fourth Proportional to 35,811.10, 53,716.65 and 20,259.10

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Solution

The fourth proportional to 35,811.10, 53,716.65 and 20,259.10 is: 30,388.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,811.10 : 53,716.65 = 20,259.10 : x
  2. Step 2: Convert to fraction form
    35,811.10/53,716.65 = 20,259.10/x
  3. Step 3: Cross multiply
    35,811.10x = 53,716.65 × 20,259.10
  4. Step 4: Simplify right side
    35,811.10x = 1,088,250,984.02
  5. Step 5: Solve for x
    x = 1,088,250,984.02/35,811.10
  6. Step 6: Final answer
    x = 30,388.65

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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.