Home / 25,621.80-38,432.70-13,957.80

Finding the Fourth Proportional to 25,621.80, 38,432.70 and 13,957.80

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Solution

The fourth proportional to 25,621.80, 38,432.70 and 13,957.80 is: 20,936.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,621.80 : 38,432.70 = 13,957.80 : x
  2. Step 2: Convert to fraction form
    25,621.80/38,432.70 = 13,957.80/x
  3. Step 3: Cross multiply
    25,621.80x = 38,432.70 × 13,957.80
  4. Step 4: Simplify right side
    25,621.80x = 536,435,940.06
  5. Step 5: Solve for x
    x = 536,435,940.06/25,621.80
  6. Step 6: Final answer
    x = 20,936.70

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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.