Home / 35,895.74-49,530.21-19,979.78

Finding the Fourth Proportional to 35,895.74, 49,530.21 and 19,979.78

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Solution

The fourth proportional to 35,895.74, 49,530.21 and 19,979.78 is: 27,568.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,895.74 : 49,530.21 = 19,979.78 : x
  2. Step 2: Convert to fraction form
    35,895.74/49,530.21 = 19,979.78/x
  3. Step 3: Cross multiply
    35,895.74x = 49,530.21 × 19,979.78
  4. Step 4: Simplify right side
    35,895.74x = 989,602,699.15
  5. Step 5: Solve for x
    x = 989,602,699.15/35,895.74
  6. Step 6: Final answer
    x = 27,568.81

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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.