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Finding the Fourth Proportional to 35,617.68, 49,149.72 and 20,509.68

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Solution

The fourth proportional to 35,617.68, 49,149.72 and 20,509.68 is: 28,301.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,617.68 : 49,149.72 = 20,509.68 : x
  2. Step 2: Convert to fraction form
    35,617.68/49,149.72 = 20,509.68/x
  3. Step 3: Cross multiply
    35,617.68x = 49,149.72 × 20,509.68
  4. Step 4: Simplify right side
    35,617.68x = 1,008,045,029.29
  5. Step 5: Solve for x
    x = 1,008,045,029.29/35,617.68
  6. Step 6: Final answer
    x = 28,301.82

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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.