Home / 25,975.02-38,962.53-20,813.70

Finding the Fourth Proportional to 25,975.02, 38,962.53 and 20,813.70

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Solution

The fourth proportional to 25,975.02, 38,962.53 and 20,813.70 is: 31,220.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,975.02 : 38,962.53 = 20,813.70 : x
  2. Step 2: Convert to fraction form
    25,975.02/38,962.53 = 20,813.70/x
  3. Step 3: Cross multiply
    25,975.02x = 38,962.53 × 20,813.70
  4. Step 4: Simplify right side
    25,975.02x = 810,954,410.66
  5. Step 5: Solve for x
    x = 810,954,410.66/25,975.02
  6. Step 6: Final answer
    x = 31,220.55

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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.