Home / 35,687.50-49,248.75-21,540.36

Finding the Fourth Proportional to 35,687.50, 49,248.75 and 21,540.36

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Solution

The fourth proportional to 35,687.50, 49,248.75 and 21,540.36 is: 29,725.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,687.50 : 49,248.75 = 21,540.36 : x
  2. Step 2: Convert to fraction form
    35,687.50/49,248.75 = 21,540.36/x
  3. Step 3: Cross multiply
    35,687.50x = 49,248.75 × 21,540.36
  4. Step 4: Simplify right side
    35,687.50x = 1,060,835,804.55
  5. Step 5: Solve for x
    x = 1,060,835,804.55/35,687.50
  6. Step 6: Final answer
    x = 29,725.70

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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.