Home / 25,621.79-35,361.15-15,011.42

Finding the Fourth Proportional to 25,621.79, 35,361.15 and 15,011.42

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Solution

The fourth proportional to 25,621.79, 35,361.15 and 15,011.42 is: 20,717.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,621.79 : 35,361.15 = 15,011.42 : x
  2. Step 2: Convert to fraction form
    25,621.79/35,361.15 = 15,011.42/x
  3. Step 3: Cross multiply
    25,621.79x = 35,361.15 × 15,011.42
  4. Step 4: Simplify right side
    25,621.79x = 530,821,089.16
  5. Step 5: Solve for x
    x = 530,821,089.16/25,621.79
  6. Step 6: Final answer
    x = 20,717.57

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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.