Home / 35,771.91-49,378.49-30,715.82

Finding the Fourth Proportional to 35,771.91, 49,378.49 and 30,715.82

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Solution

The fourth proportional to 35,771.91, 49,378.49 and 30,715.82 is: 42,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,771.91 : 49,378.49 = 30,715.82 : x
  2. Step 2: Convert to fraction form
    35,771.91/49,378.49 = 30,715.82/x
  3. Step 3: Cross multiply
    35,771.91x = 49,378.49 × 30,715.82
  4. Step 4: Simplify right side
    35,771.91x = 1,516,700,410.24
  5. Step 5: Solve for x
    x = 1,516,700,410.24/35,771.91
  6. Step 6: Final answer
    x = 42,399.20

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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.