Home / 25,767.81-35,558.84-15,015.06

Finding the Fourth Proportional to 25,767.81, 35,558.84 and 15,015.06

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Solution

The fourth proportional to 25,767.81, 35,558.84 and 15,015.06 is: 20,720.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,767.81 : 35,558.84 = 15,015.06 : x
  2. Step 2: Convert to fraction form
    25,767.81/35,558.84 = 15,015.06/x
  3. Step 3: Cross multiply
    25,767.81x = 35,558.84 × 15,015.06
  4. Step 4: Simplify right side
    25,767.81x = 533,918,069.21
  5. Step 5: Solve for x
    x = 533,918,069.21/25,767.81
  6. Step 6: Final answer
    x = 20,720.35

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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.