Home / 25,172.90-37,727.05-21,270.12

Finding the Fourth Proportional to 25,172.90, 37,727.05 and 21,270.12

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Solution

The fourth proportional to 25,172.90, 37,727.05 and 21,270.12 is: 31,877.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,172.90 : 37,727.05 = 21,270.12 : x
  2. Step 2: Convert to fraction form
    25,172.90/37,727.05 = 21,270.12/x
  3. Step 3: Cross multiply
    25,172.90x = 37,727.05 × 21,270.12
  4. Step 4: Simplify right side
    25,172.90x = 802,458,880.75
  5. Step 5: Solve for x
    x = 802,458,880.75/25,172.90
  6. Step 6: Final answer
    x = 31,877.89

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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.