Home / 25,205.31-37,835.91-21,305.03

Finding the Fourth Proportional to 25,205.31, 37,835.91 and 21,305.03

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Solution

The fourth proportional to 25,205.31, 37,835.91 and 21,305.03 is: 31,981.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,205.31 : 37,835.91 = 21,305.03 : x
  2. Step 2: Convert to fraction form
    25,205.31/37,835.91 = 21,305.03/x
  3. Step 3: Cross multiply
    25,205.31x = 37,835.91 × 21,305.03
  4. Step 4: Simplify right side
    25,205.31x = 806,095,008.45
  5. Step 5: Solve for x
    x = 806,095,008.45/25,205.31
  6. Step 6: Final answer
    x = 31,981.16

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1.5x scale

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.