Home / 35,315.75-48,740.06-20,411.75

Finding the Fourth Proportional to 35,315.75, 48,740.06 and 20,411.75

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Solution

The fourth proportional to 35,315.75, 48,740.06 and 20,411.75 is: 28,170.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,315.75 : 48,740.06 = 20,411.75 : x
  2. Step 2: Convert to fraction form
    35,315.75/48,740.06 = 20,411.75/x
  3. Step 3: Cross multiply
    35,315.75x = 48,740.06 × 20,411.75
  4. Step 4: Simplify right side
    35,315.75x = 994,869,919.71
  5. Step 5: Solve for x
    x = 994,869,919.71/35,315.75
  6. Step 6: Final answer
    x = 28,170.71

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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.