Home / 35,990.31-49,666.30-19,857.77

Finding the Fourth Proportional to 35,990.31, 49,666.30 and 19,857.77

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Solution

The fourth proportional to 35,990.31, 49,666.30 and 19,857.77 is: 27,403.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,990.31 : 49,666.30 = 19,857.77 : x
  2. Step 2: Convert to fraction form
    35,990.31/49,666.30 = 19,857.77/x
  3. Step 3: Cross multiply
    35,990.31x = 49,666.30 × 19,857.77
  4. Step 4: Simplify right side
    35,990.31x = 986,262,101.81
  5. Step 5: Solve for x
    x = 986,262,101.81/35,990.31
  6. Step 6: Final answer
    x = 27,403.54

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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.