Home / 35,943.40-53,947.10-21,133.80

Finding the Fourth Proportional to 35,943.40, 53,947.10 and 21,133.80

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Solution

The fourth proportional to 35,943.40, 53,947.10 and 21,133.80 is: 31,719.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,943.40 : 53,947.10 = 21,133.80 : x
  2. Step 2: Convert to fraction form
    35,943.40/53,947.10 = 21,133.80/x
  3. Step 3: Cross multiply
    35,943.40x = 53,947.10 × 21,133.80
  4. Step 4: Simplify right side
    35,943.40x = 1,140,107,221.98
  5. Step 5: Solve for x
    x = 1,140,107,221.98/35,943.40
  6. Step 6: Final answer
    x = 31,719.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.