Home / 25,821.45-35,640.59-15,214.41

Finding the Fourth Proportional to 25,821.45, 35,640.59 and 15,214.41

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Solution

The fourth proportional to 25,821.45, 35,640.59 and 15,214.41 is: 21,000.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,821.45 : 35,640.59 = 15,214.41 : x
  2. Step 2: Convert to fraction form
    25,821.45/35,640.59 = 15,214.41/x
  3. Step 3: Cross multiply
    25,821.45x = 35,640.59 × 15,214.41
  4. Step 4: Simplify right side
    25,821.45x = 542,250,472.83
  5. Step 5: Solve for x
    x = 542,250,472.83/25,821.45
  6. Step 6: Final answer
    x = 21,000.00

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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.