Home / 35,825.41-49,435.13-20,715.78

Finding the Fourth Proportional to 35,825.41, 49,435.13 and 20,715.78

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Solution

The fourth proportional to 35,825.41, 49,435.13 and 20,715.78 is: 28,585.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,825.41 : 49,435.13 = 20,715.78 : x
  2. Step 2: Convert to fraction form
    35,825.41/49,435.13 = 20,715.78/x
  3. Step 3: Cross multiply
    35,825.41x = 49,435.13 × 20,715.78
  4. Step 4: Simplify right side
    35,825.41x = 1,024,087,277.35
  5. Step 5: Solve for x
    x = 1,024,087,277.35/35,825.41
  6. Step 6: Final answer
    x = 28,585.50

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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.